90045099 has 6 divisors (see below), whose sum is σ = 130065156. Its totient is φ = 60030060.

The previous prime is 90045097. The next prime is 90045113. The reversal of 90045099 is 99054009.

It is not a de Polignac number, because 90045099 - 2¹ = 90045097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90045097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5002497 + ... + 5002514.

It is an arithmetic number, because the mean of its divisors is an integer number (21677526).

Almost surely, 2^90045099 is an apocalyptic number.

90045099 is a deficient number, since it is larger than the sum of its proper divisors (40020057).

90045099 is a wasteful number, since it uses less digits than its factorization.

90045099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005017 (or 10005014 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 90045099 is about 9489.2096088136. The cubic root of 90045099 is about 448.2153165533.

The spelling of 90045099 in words is "ninety million, forty-five thousand, ninety-nine".