90169275 has 48 divisors (see below), whose sum is σ = 180417024. Its totient is φ = 38791680.

The previous prime is 90169273. The next prime is 90169301. The reversal of 90169275 is 57296109.

It is not a de Polignac number, because 90169275 - 2¹ = 90169273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90169273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3874 + ... + 13976.

It is an arithmetic number, because the mean of its divisors is an integer number (3758688).

Almost surely, 2^90169275 is an apocalyptic number.

90169275 is an abundant number, since it is smaller than the sum of its proper divisors (90247749).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90169275 is a wasteful number, since it uses less digits than its factorization.

90169275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10140 (or 10135 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 90169275 is about 9495.7503652950. The cubic root of 90169275 is about 448.4212578747.

The spelling of 90169275 in words is "ninety million, one hundred sixty-nine thousand, two hundred seventy-five".