1355786041 has 3 divisors (see below), whose sum is σ = 1355822863. Its totient is φ = 1355749220.

The previous prime is 1355786011. The next prime is 1355786063. The reversal of 1355786041 is 1406875531.

It is a happy number.

The square root of 1355786041 is 36821.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1406875531 = 37 ⋅38023663.

It can be written as a sum of positive squares in only one way, i.e., 440118441 + 915667600 = 20979^2 + 30260^2 .

It is not a de Polignac number, because 1355786041 - 2¹¹ = 1355783993 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355785985 and 1355786003.

It is not an unprimeable number, because it can be changed into a prime (1355786011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18411 + ... + 55231.

Almost surely, 2^1355786041 is an apocalyptic number.

1355786041 is the 36821-st square number.

1355786041 is the 18411-st centered octagonal number.

It is an amenable number.

1355786041 is a deficient number, since it is larger than the sum of its proper divisors (36822).

1355786041 is an frugal number, since it uses more digits than its factorization.

1355786041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73642 (or 36821 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The cubic root of 1355786041 is about 1106.7861589635.

The spelling of 1355786041 in words is "one billion, three hundred fifty-five million, seven hundred eighty-six thousand, forty-one".