13157445 has 48 divisors (see below), whose sum is σ = 25084800. Its totient is φ = 5768448.

The previous prime is 13157437. The next prime is 13157453. The reversal of 13157445 is 54475131.

It is an interprime number because it is at equal distance from previous prime (13157437) and next prime (13157453).

It is not a de Polignac number, because 13157445 - 2³ = 13157437 is a prime.

It is a super-3 number, since 3×13157445³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88231 + ... + 88379.

It is an arithmetic number, because the mean of its divisors is an integer number (522600).

Almost surely, 2^13157445 is an apocalyptic number.

13157445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13157445 is a deficient number, since it is larger than the sum of its proper divisors (11927355).

13157445 is a wasteful number, since it uses less digits than its factorization.

13157445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 193 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 13157445 is about 3627.3192580748. The cubic root of 13157445 is about 236.0789080674.

The spelling of 13157445 in words is "thirteen million, one hundred fifty-seven thousand, four hundred forty-five".