90812116 has 6 divisors (see below), whose sum is σ = 158921210. Its totient is φ = 45406056.

The previous prime is 90812083. The next prime is 90812143. The reversal of 90812116 is 61121809.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65772100 + 25040016 = 8110^2 + 5004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11351511 + ... + 11351518.

Almost surely, 2^90812116 is an apocalyptic number.

It is an amenable number.

90812116 is a deficient number, since it is larger than the sum of its proper divisors (68109094).

90812116 is a wasteful number, since it uses less digits than its factorization.

90812116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22703033 (or 22703031 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 90812116 is about 9529.5391284154. The cubic root of 90812116 is about 449.4843740121.

The spelling of 90812116 in words is "ninety million, eight hundred twelve thousand, one hundred sixteen".