90612045 has 48 divisors (see below), whose sum is σ = 166795200. Its totient is φ = 45377280.

The previous prime is 90612043. The next prime is 90612059. The reversal of 90612045 is 54021609.

90612045 is a `hidden beast` number, since 9 + 0 + 612 + 0 + 45 = 666.

It is not a de Polignac number, because 90612045 - 2¹ = 90612043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90612043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111601 + ... + 112409.

It is an arithmetic number, because the mean of its divisors is an integer number (3474900).

Almost surely, 2^90612045 is an apocalyptic number.

90612045 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90612045 is a deficient number, since it is larger than the sum of its proper divisors (76183155).

90612045 is a wasteful number, since it uses less digits than its factorization.

90612045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 90612045 is about 9519.0359280759. The cubic root of 90612045 is about 449.1540402977.

The spelling of 90612045 in words is "ninety million, six hundred twelve thousand, forty-five".