90192631 has 2 divisors, whose sum is σ = 90192632. Its totient is φ = 90192630.

The previous prime is 90192611. The next prime is 90192659. The reversal of 90192631 is 13629109.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90192631 - 2⁷ = 90192503 is a prime.

It is a super-2 number, since 2×90192631² = 16269421373404322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90192593 and 90192602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90192611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45096315 + 45096316.

It is an arithmetic number, because the mean of its divisors is an integer number (45096316).

Almost surely, 2^90192631 is an apocalyptic number.

90192631 is a deficient number, since it is larger than the sum of its proper divisors (1).

90192631 is an equidigital number, since it uses as much as digits as its factorization.

90192631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 90192631 is about 9496.9800989578. The cubic root of 90192631 is about 448.4599718111.

It can be divided in two parts, 90 and 192631, that added together give a square (192721 = 439²).

The spelling of 90192631 in words is "ninety million, one hundred ninety-two thousand, six hundred thirty-one".