90148904 has 8 divisors (see below), whose sum is σ = 169029210. Its totient is φ = 45074448.

The previous prime is 90148897. The next prime is 90148997. The reversal of 90148904 is 40984109.

It can be written as a sum of positive squares in only one way, i.e., 90060100 + 88804 = 9490^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5634299 + ... + 5634314.

Almost surely, 2^90148904 is an apocalyptic number.

It is an amenable number.

90148904 is a deficient number, since it is larger than the sum of its proper divisors (78880306).

90148904 is a wasteful number, since it uses less digits than its factorization.

90148904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11268619 (or 11268615 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 90148904 is about 9494.6776669880. The cubic root of 90148904 is about 448.3874862918.

The spelling of 90148904 in words is "ninety million, one hundred forty-eight thousand, nine hundred four".