90151845 has 16 divisors (see below), whose sum is σ = 164849280. Its totient is φ = 41212224.

The previous prime is 90151837. The next prime is 90151847. The reversal of 90151845 is 54815109.

It is not a de Polignac number, because 90151845 - 2³ = 90151837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90151847) by changing a digit.

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, 429190 + ... + 429399.

It is an arithmetic number, because the mean of its divisors is an integer number (10303080).

Almost surely, 2^90151845 is an apocalyptic number.

It is an amenable number.

90151845 is a deficient number, since it is larger than the sum of its proper divisors (74697435).

90151845 is a wasteful number, since it uses less digits than its factorization.

90151845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858604.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 90151845 is about 9494.8325419672. The cubic root of 90151845 is about 448.3923622736.

The spelling of 90151845 in words is "ninety million, one hundred fifty-one thousand, eight hundred forty-five".