90148170 has 32 divisors (see below), whose sum is σ = 247264128. Its totient is φ = 20605248.

The previous prime is 90148151. The next prime is 90148183. The reversal of 90148170 is 7184109.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214429 + ... + 214848.

It is an arithmetic number, because the mean of its divisors is an integer number (7727004).

Almost surely, 2^90148170 is an apocalyptic number.

90148170 is an abundant number, since it is smaller than the sum of its proper divisors (157115958).

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

90148170 is a wasteful number, since it uses less digits than its factorization.

90148170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429294.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 90148170 is about 9494.6390136750. The cubic root of 90148170 is about 448.3862693522.

The spelling of 90148170 in words is "ninety million, one hundred forty-eight thousand, one hundred seventy".