90459122 has 16 divisors (see below), whose sum is σ = 146774040. Its totient is φ = 41565312.

The previous prime is 90459119. The next prime is 90459139. The reversal of 90459122 is 22195409.

It is a Cunningham number, because it is equal to 9511²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 90459121 + 1 = 9511^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643 + ... + 13550.

Almost surely, 2^90459122 is an apocalyptic number.

90459122 is a deficient number, since it is larger than the sum of its proper divisors (56314918).

90459122 is a wasteful number, since it uses less digits than its factorization.

90459122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15437.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 90459122 is about 9511.0000525707. Note that the first 4 decimals coincide. The cubic root of 90459122 is about 448.9012238012.

The spelling of 90459122 in words is "ninety million, four hundred fifty-nine thousand, one hundred twenty-two".