90316539 has 32 divisors (see below), whose sum is σ = 137878080. Its totient is φ = 59136480.

The previous prime is 90316537. The next prime is 90316543. The reversal of 90316539 is 93561309.

90316539 is a `hidden beast` number, since 90 + 31 + 6 + 539 = 666.

It is not a de Polignac number, because 90316539 - 2¹ = 90316537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90316531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133069 + ... + 133745.

It is an arithmetic number, because the mean of its divisors is an integer number (4308690).

Almost surely, 2^90316539 is an apocalyptic number.

90316539 is a deficient number, since it is larger than the sum of its proper divisors (47561541).

90316539 is an frugal number, since it uses more digits than its factorization.

90316539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 90316539 is about 9503.5014073761. The cubic root of 90316539 is about 448.6652448671.

The spelling of 90316539 in words is "ninety million, three hundred sixteen thousand, five hundred thirty-nine".