90951518 has 32 divisors (see below), whose sum is σ = 164778240. Its totient is φ = 36780480.

The previous prime is 90951517. The next prime is 90951521. The reversal of 90951518 is 81515909.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90951517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87530 + ... + 88562.

It is an arithmetic number, because the mean of its divisors is an integer number (5149320).

Almost surely, 2^90951518 is an apocalyptic number.

90951518 is a deficient number, since it is larger than the sum of its proper divisors (73826722).

90951518 is a wasteful number, since it uses less digits than its factorization.

90951518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 90951518 is about 9536.8505283453. The cubic root of 90951518 is about 449.7142515109.

The spelling of 90951518 in words is "ninety million, nine hundred fifty-one thousand, five hundred eighteen".