90352131 has 4 divisors (see below), whose sum is σ = 120469512. Its totient is φ = 60234752.

The previous prime is 90352109. The next prime is 90352133. The reversal of 90352131 is 13125309.

It is a happy number.

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 90352131 - 2⁹ = 90351619 is a prime.

It is a super-2 number, since 2×90352131² = 16327015152482322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90352133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15058686 + ... + 15058691.

It is an arithmetic number, because the mean of its divisors is an integer number (30117378).

Almost surely, 2^90352131 is an apocalyptic number.

90352131 is a deficient number, since it is larger than the sum of its proper divisors (30117381).

90352131 is a wasteful number, since it uses less digits than its factorization.

90352131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30117380.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 90352131 is about 9505.3737959114. The cubic root of 90352131 is about 448.7241738900.

The spelling of 90352131 in words is "ninety million, three hundred fifty-two thousand, one hundred thirty-one".