90118122 has 32 divisors (see below), whose sum is σ = 191979072. Its totient is φ = 28103424.

The previous prime is 90118081. The next prime is 90118151. The reversal of 90118122 is 22181109.

It is a junction number, because it is equal to n+sod(n) for n = 90118092 and 90118101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15093 + ... + 20199.

It is an arithmetic number, because the mean of its divisors is an integer number (5999346).

Almost surely, 2^90118122 is an apocalyptic number.

90118122 is an abundant number, since it is smaller than the sum of its proper divisors (101860950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90118122 is a wasteful number, since it uses less digits than its factorization.

90118122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 90118122 is about 9493.0565151589. The cubic root of 90118122 is about 448.3364454240.

The spelling of 90118122 in words is "ninety million, one hundred eighteen thousand, one hundred twenty-two".