10391157 has 24 divisors (see below), whose sum is σ = 18058560. Its totient is φ = 5624640.

The previous prime is 10391137. The next prime is 10391177. The reversal of 10391157 is 75119301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10391137) and next prime (10391177).

It is not a de Polignac number, because 10391157 - 2⁶ = 10391093 is a prime.

It is a super-2 number, since 2×10391157² = 215952287597298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10391157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10391137) 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, 3144 + ... + 5537.

It is an arithmetic number, because the mean of its divisors is an integer number (752440).

Almost surely, 2^10391157 is an apocalyptic number.

It is an amenable number.

10391157 is a deficient number, since it is larger than the sum of its proper divisors (7667403).

10391157 is a wasteful number, since it uses less digits than its factorization.

10391157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713 (or 8710 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 10391157 is about 3223.5317588012. The cubic root of 10391157 is about 218.2166924841.

The spelling of 10391157 in words is "ten million, three hundred ninety-one thousand, one hundred fifty-seven".