88815157 has 4 divisors (see below), whose sum is σ = 94039596. Its totient is φ = 83590720.

The previous prime is 88815127. The next prime is 88815163. The reversal of 88815157 is 75151888.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55741156 + 33074001 = 7466^2 + 5751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88815157 is a prime.

It is a super-2 number, since 2×88815157² = 15776264225869298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88815127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2612194 + ... + 2612227.

It is an arithmetic number, because the mean of its divisors is an integer number (23509899).

Almost surely, 2^88815157 is an apocalyptic number.

It is an amenable number.

88815157 is a deficient number, since it is larger than the sum of its proper divisors (5224439).

88815157 is a wasteful number, since it uses less digits than its factorization.

88815157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224438.

The product of its digits is 89600, while the sum is 43.

The square root of 88815157 is about 9424.1793807206. The cubic root of 88815157 is about 446.1652028642.

The spelling of 88815157 in words is "eighty-eight million, eight hundred fifteen thousand, one hundred fifty-seven".