90994156 has 24 divisors (see below), whose sum is σ = 174053376. Its totient is φ = 41280720.

The previous prime is 90994133. The next prime is 90994159. The reversal of 90994156 is 65149909.

It is not an unprimeable number, because it can be changed into a prime (90994159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25005 + ... + 28411.

It is an arithmetic number, because the mean of its divisors is an integer number (7252224).

Almost surely, 2^90994156 is an apocalyptic number.

It is an amenable number.

90994156 is a deficient number, since it is larger than the sum of its proper divisors (83059220).

90994156 is a wasteful number, since it uses less digits than its factorization.

90994156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 90994156 is about 9539.0857004222. The cubic root of 90994156 is about 449.7845157611.

The spelling of 90994156 in words is "ninety million, nine hundred ninety-four thousand, one hundred fifty-six".