1246072741 has 4 divisors (see below), whose sum is σ = 1249643500. Its totient is φ = 1242501984.

The previous prime is 1246072727. The next prime is 1246072757. The reversal of 1246072741 is 1472706421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 775399716 + 470673025 = 27846^2 + 21695^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246072741 - 2⁹ = 1246072229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1246072697 and 1246072706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246072721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784856 + ... + 1785553.

It is an arithmetic number, because the mean of its divisors is an integer number (312410875).

Almost surely, 2^1246072741 is an apocalyptic number.

It is an amenable number.

1246072741 is a deficient number, since it is larger than the sum of its proper divisors (3570759).

1246072741 is an equidigital number, since it uses as much as digits as its factorization.

1246072741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570758.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 1246072741 is about 35299.7555373971. The cubic root of 1246072741 is about 1076.0880250836.

The spelling of 1246072741 in words is "one billion, two hundred forty-six million, seventy-two thousand, seven hundred forty-one".