90547137 has 6 divisors (see below), whose sum is σ = 130790322. Its totient is φ = 60364752.

The previous prime is 90547129. The next prime is 90547139. The reversal of 90547137 is 73174509.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 79014321 + 11532816 = 8889^2 + 3396^2 .

It is not a de Polignac number, because 90547137 - 2³ = 90547129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90547139) 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 5 ways as a sum of consecutive naturals, for example, 5030388 + ... + 5030405.

It is an arithmetic number, because the mean of its divisors is an integer number (21798387).

Almost surely, 2^90547137 is an apocalyptic number.

It is an amenable number.

90547137 is a deficient number, since it is larger than the sum of its proper divisors (40243185).

90547137 is a wasteful number, since it uses less digits than its factorization.

90547137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060799 (or 10060796 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 90547137 is about 9515.6259384236. The cubic root of 90547137 is about 449.0467673834.

The spelling of 90547137 in words is "ninety million, five hundred forty-seven thousand, one hundred thirty-seven".