69831157 has 12 divisors (see below), whose sum is σ = 78211980. Its totient is φ = 62279360.

The previous prime is 69831149. The next prime is 69831163. The reversal of 69831157 is 75113896.

It can be written as a sum of positive squares in 2 ways, for example, as 21958596 + 47872561 = 4686^2 + 6919^2 .

It is not a de Polignac number, because 69831157 - 2³ = 69831149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69831107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (6517665).

Almost surely, 2^69831157 is an apocalyptic number.

It is an amenable number.

69831157 is a deficient number, since it is larger than the sum of its proper divisors (8380823).

69831157 is a wasteful number, since it uses less digits than its factorization.

69831157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10964 (or 10953 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 69831157 is about 8356.5038742287. The cubic root of 69831157 is about 411.7969059817.

The spelling of 69831157 in words is "sixty-nine million, eight hundred thirty-one thousand, one hundred fifty-seven".