13203157 has 12 divisors (see below), whose sum is σ = 15279040. Its totient is φ = 11369160.

The previous prime is 13203139. The next prime is 13203167. The reversal of 13203157 is 75130231.

It is a de Polignac number, because none of the positive numbers 2^k-13203157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573 + ... + 5170.

Almost surely, 2^13203157 is an apocalyptic number.

It is an amenable number.

13203157 is a deficient number, since it is larger than the sum of its proper divisors (2075883).

13203157 is a wasteful number, since it uses less digits than its factorization.

13203157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784 (or 5773 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 13203157 is about 3633.6148667684. The cubic root of 13203157 is about 236.3519895956.

Adding to 13203157 its reverse (75130231), we get a palindrome (88333388).

The spelling of 13203157 in words is "thirteen million, two hundred three thousand, one hundred fifty-seven".