88515140 has 24 divisors (see below), whose sum is σ = 212436672. Its totient is φ = 30348000.

The previous prime is 88515121. The next prime is 88515179. The reversal of 88515140 is 4151588.

It is a junction number, because it is equal to n+sod(n) for n = 88515097 and 88515106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315986 + ... + 316265.

It is an arithmetic number, because the mean of its divisors is an integer number (8851528).

Almost surely, 2^88515140 is an apocalyptic number.

It is an amenable number.

88515140 is an abundant number, since it is smaller than the sum of its proper divisors (123921532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88515140 is a wasteful number, since it uses less digits than its factorization.

88515140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632267 (or 632265 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 88515140 is about 9408.2485086226. The cubic root of 88515140 is about 445.6622551072.

The spelling of 88515140 in words is "eighty-eight million, five hundred fifteen thousand, one hundred forty".