13157305 has 8 divisors (see below), whose sum is σ = 18044352. Its totient is φ = 9022128.

The previous prime is 13157293. The next prime is 13157341. The reversal of 13157305 is 50375131.

13157305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13157305 - 2¹³ = 13149113 is a prime.

It is a super-2 number, since 2×13157305² = 346229349726050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13157305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187927 + ... + 187996.

It is an arithmetic number, because the mean of its divisors is an integer number (2255544).

Almost surely, 2^13157305 is an apocalyptic number.

It is an amenable number.

13157305 is a deficient number, since it is larger than the sum of its proper divisors (4887047).

13157305 is an equidigital number, since it uses as much as digits as its factorization.

13157305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375935.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 13157305 is about 3627.2999600254. The cubic root of 13157305 is about 236.0780707426.

The spelling of 13157305 in words is "thirteen million, one hundred fifty-seven thousand, three hundred five".