88190231 has 2 divisors, whose sum is σ = 88190232. Its totient is φ = 88190230.

The previous prime is 88190227. The next prime is 88190273. The reversal of 88190231 is 13209188.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88190231 - 2² = 88190227 is a prime.

It is a super-2 number, since 2×88190231² = 15555033687666722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88190731) 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 as a sum of consecutive naturals, namely, 44095115 + 44095116.

It is an arithmetic number, because the mean of its divisors is an integer number (44095116).

Almost surely, 2^88190231 is an apocalyptic number.

88190231 is a deficient number, since it is larger than the sum of its proper divisors (1).

88190231 is an equidigital number, since it uses as much as digits as its factorization.

88190231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 88190231 is about 9390.9653923332. The cubic root of 88190231 is about 445.1162949850.

The spelling of 88190231 in words is "eighty-eight million, one hundred ninety thousand, two hundred thirty-one".