90510164 has 6 divisors (see below), whose sum is σ = 158392794. Its totient is φ = 45255080.

The previous prime is 90510143. The next prime is 90510169. The reversal of 90510164 is 46101509.

It can be written as a sum of positive squares in only one way, i.e., 76387600 + 14122564 = 8740^2 + 3758^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90510169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11313767 + ... + 11313774.

It is an arithmetic number, because the mean of its divisors is an integer number (26398799).

Almost surely, 2^90510164 is an apocalyptic number.

It is an amenable number.

90510164 is a deficient number, since it is larger than the sum of its proper divisors (67882630).

90510164 is a wasteful number, since it uses less digits than its factorization.

90510164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22627545 (or 22627543 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 90510164 is about 9513.6829882018. The cubic root of 90510164 is about 448.9856394929.

The spelling of 90510164 in words is "ninety million, five hundred ten thousand, one hundred sixty-four".