1355274841 has 4 divisors (see below), whose sum is σ = 1359158500. Its totient is φ = 1351391184.

The previous prime is 1355274821. The next prime is 1355274847. The reversal of 1355274841 is 1484725531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1484725531 = 19 ⋅78143449.

It can be written as a sum of positive squares in 2 ways, for example, as 1051121241 + 304153600 = 32421^2 + 17440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355274841 - 2⁹ = 1355274329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355274794 and 1355274803.

It is not an unprimeable number, because it can be changed into a prime (1355274847) 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, 1941306 + ... + 1942003.

It is an arithmetic number, because the mean of its divisors is an integer number (339789625).

Almost surely, 2^1355274841 is an apocalyptic number.

It is an amenable number.

1355274841 is a deficient number, since it is larger than the sum of its proper divisors (3883659).

1355274841 is an equidigital number, since it uses as much as digits as its factorization.

1355274841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883658.

The product of its digits is 134400, while the sum is 40.

The square root of 1355274841 is about 36814.0576546514. The cubic root of 1355274841 is about 1106.6470366653.

The spelling of 1355274841 in words is "one billion, three hundred fifty-five million, two hundred seventy-four thousand, eight hundred forty-one".