90216146 has 8 divisors (see below), whose sum is σ = 135460080. Its totient is φ = 45062788.

The previous prime is 90216131. The next prime is 90216157. The reversal of 90216146 is 64161209.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 20096 + ... + 24171.

It is an arithmetic number, because the mean of its divisors is an integer number (16932510).

Almost surely, 2^90216146 is an apocalyptic number.

90216146 is a deficient number, since it is larger than the sum of its proper divisors (45243934).

90216146 is a wasteful number, since it uses less digits than its factorization.

90216146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45288.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 90216146 is about 9498.2180434016. The cubic root of 90216146 is about 448.4989425481.

The spelling of 90216146 in words is "ninety million, two hundred sixteen thousand, one hundred forty-six".