88115215 has 4 divisors (see below), whose sum is σ = 105738264. Its totient is φ = 70492168.

The previous prime is 88115201. The next prime is 88115219. The reversal of 88115215 is 51251188.

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 88115215 - 2⁷ = 88115087 is a prime.

It is a super-2 number, since 2×88115215² = 15528582228992450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88115219) 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, 8811517 + ... + 8811526.

It is an arithmetic number, because the mean of its divisors is an integer number (26434566).

Almost surely, 2^88115215 is an apocalyptic number.

88115215 is a deficient number, since it is larger than the sum of its proper divisors (17623049).

88115215 is a wasteful number, since it uses less digits than its factorization.

88115215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17623048.

The product of its digits is 3200, while the sum is 31.

The square root of 88115215 is about 9386.9704910583. The cubic root of 88115215 is about 444.9900515387.

The spelling of 88115215 in words is "eighty-eight million, one hundred fifteen thousand, two hundred fifteen".