88511131 has 4 divisors (see below), whose sum is σ = 88627000. Its totient is φ = 88395264.

The previous prime is 88511099. The next prime is 88511147. The reversal of 88511131 is 13111588.

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

It is a cyclic number.

It is not a de Polignac number, because 88511131 - 2⁵ = 88511099 is a prime.

It is a super-2 number, since 2×88511131² = 15668440621798322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88511131.

It is not an unprimeable number, because it can be changed into a prime (88511191) 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 3 ways as a sum of consecutive naturals, for example, 56781 + ... + 58318.

It is an arithmetic number, because the mean of its divisors is an integer number (22156750).

Almost surely, 2^88511131 is an apocalyptic number.

88511131 is a deficient number, since it is larger than the sum of its proper divisors (115869).

88511131 is a wasteful number, since it uses less digits than its factorization.

88511131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115868.

The product of its digits is 960, while the sum is 28.

The square root of 88511131 is about 9408.0354484876. The cubic root of 88511131 is about 445.6555267405.

The spelling of 88511131 in words is "eighty-eight million, five hundred eleven thousand, one hundred thirty-one".