90630131 has 8 divisors (see below), whose sum is σ = 95351424. Its totient is φ = 86028480.

The previous prime is 90630109. The next prime is 90630149. The reversal of 90630131 is 13103609.

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

It is a cyclic number.

It is not a de Polignac number, because 90630131 - 2¹⁸ = 90367987 is a prime.

It is a super-2 number, since 2×90630131² = 16427641290154322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90630097 and 90630106.

It is not an unprimeable number, because it can be changed into a prime (90630101) 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, 28355 + ... + 31388.

It is an arithmetic number, because the mean of its divisors is an integer number (11918928).

Almost surely, 2^90630131 is an apocalyptic number.

90630131 is a deficient number, since it is larger than the sum of its proper divisors (4721293).

90630131 is a wasteful number, since it uses less digits than its factorization.

90630131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59821.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 90630131 is about 9519.9858718383. The cubic root of 90630131 is about 449.1839217539.

The spelling of 90630131 in words is "ninety million, six hundred thirty thousand, one hundred thirty-one".