13157001 has 24 divisors (see below), whose sum is σ = 22329216. Its totient is φ = 7359840.

The previous prime is 13156999. The next prime is 13157017. The reversal of 13157001 is 10075131.

It is a happy number.

It is not a de Polignac number, because 13157001 - 2¹ = 13156999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13157021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3825 + ... + 6398.

It is an arithmetic number, because the mean of its divisors is an integer number (930384).

Almost surely, 2^13157001 is an apocalyptic number.

13157001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13157001 is a deficient number, since it is larger than the sum of its proper divisors (9172215).

13157001 is a wasteful number, since it uses less digits than its factorization.

13157001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253 (or 10250 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 13157001 is about 3627.2580553360. The cubic root of 13157001 is about 236.0762525312.

The spelling of 13157001 in words is "thirteen million, one hundred fifty-seven thousand, one".