90218152 has 16 divisors (see below), whose sum is σ = 169358400. Its totient is φ = 45055920.

The previous prime is 90218147. The next prime is 90218179. The reversal of 90218152 is 25181209.

It is a self number, because there is not a number n which added to its sum of digits gives 90218152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099 + ... + 13477.

It is an arithmetic number, because the mean of its divisors is an integer number (10584900).

Almost surely, 2^90218152 is an apocalyptic number.

It is an amenable number.

90218152 is a deficient number, since it is larger than the sum of its proper divisors (79140248).

90218152 is a wasteful number, since it uses less digits than its factorization.

90218152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13296 (or 13292 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 90218152 is about 9498.3236415696. The cubic root of 90218152 is about 448.5022667210.

The spelling of 90218152 in words is "ninety million, two hundred eighteen thousand, one hundred fifty-two".