90362131 has 2 divisors, whose sum is σ = 90362132. Its totient is φ = 90362130.

The previous prime is 90362113. The next prime is 90362137. The reversal of 90362131 is 13126309.

Together with previous prime (90362113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90362131 - 2¹⁷ = 90231059 is a prime.

It is a super-2 number, since 2×90362131² = 16330629437722322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90362096 and 90362105.

It is not a weakly prime, because it can be changed into another prime (90362137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45181065 + 45181066.

It is an arithmetic number, because the mean of its divisors is an integer number (45181066).

Almost surely, 2^90362131 is an apocalyptic number.

90362131 is a deficient number, since it is larger than the sum of its proper divisors (1).

90362131 is an equidigital number, since it uses as much as digits as its factorization.

90362131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 90362131 is about 9505.8997995981. The cubic root of 90362131 is about 448.7407279220.

The spelling of 90362131 in words is "ninety million, three hundred sixty-two thousand, one hundred thirty-one".