90100144 has 10 divisors (see below), whose sum is σ = 174569060. Its totient is φ = 45050064.

The previous prime is 90100141. The next prime is 90100169. The reversal of 90100144 is 44100109.

It is not an unprimeable number, because it can be changed into a prime (90100141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815614 + ... + 2815645.

It is an arithmetic number, because the mean of its divisors is an integer number (17456906).

Almost surely, 2^90100144 is an apocalyptic number.

It is an amenable number.

90100144 is a deficient number, since it is larger than the sum of its proper divisors (84468916).

90100144 is a wasteful number, since it uses less digits than its factorization.

90100144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631267 (or 5631261 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 90100144 is about 9492.1095653179. The cubic root of 90100144 is about 448.3066300051.

The spelling of 90100144 in words is "ninety million, one hundred thousand, one hundred forty-four".