90131501 has 8 divisors (see below), whose sum is σ = 95523264. Its totient is φ = 84749760.

The previous prime is 90131479. The next prime is 90131513. The reversal of 90131501 is 10513109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90131501 - 2¹⁸ = 89869357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90131521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24296 + ... + 27758.

It is an arithmetic number, because the mean of its divisors is an integer number (11940408).

Almost surely, 2^90131501 is an apocalyptic number.

It is an amenable number.

90131501 is a deficient number, since it is larger than the sum of its proper divisors (5391763).

90131501 is a wasteful number, since it uses less digits than its factorization.

90131501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 90131501 is about 9493.7611619421. The cubic root of 90131501 is about 448.3586311078.

The spelling of 90131501 in words is "ninety million, one hundred thirty-one thousand, five hundred one".