1355115413 has 4 divisors (see below), whose sum is σ = 1355225280. Its totient is φ = 1355005548.

The previous prime is 1355115409. The next prime is 1355115457. The reversal of 1355115413 is 3145115531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1355115413 - 2² = 1355115409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355145413) 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, 33695 + ... + 62012.

It is an arithmetic number, because the mean of its divisors is an integer number (338806320).

Almost surely, 2^1355115413 is an apocalyptic number.

It is an amenable number.

1355115413 is a deficient number, since it is larger than the sum of its proper divisors (109867).

1355115413 is an equidigital number, since it uses as much as digits as its factorization.

1355115413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109866.

The product of its digits is 4500, while the sum is 29.

The square root of 1355115413 is about 36811.8922768173. The cubic root of 1355115413 is about 1106.6036414225.

The spelling of 1355115413 in words is "one billion, three hundred fifty-five million, one hundred fifteen thousand, four hundred thirteen".