90835137 has 6 divisors (see below), whose sum is σ = 131206322. Its totient is φ = 60556752.

The previous prime is 90835127. The next prime is 90835139. The reversal of 90835137 is 73153809.

It can be written as a sum of positive squares in only one way, i.e., 68707521 + 22127616 = 8289^2 + 4704^2 .

It is not a de Polignac number, because 90835137 - 2¹⁰ = 90834113 is a prime.

It is a super-2 number, since 2×90835137² = 16502044227617538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90835139) 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, 5046388 + ... + 5046405.

Almost surely, 2^90835137 is an apocalyptic number.

It is an amenable number.

90835137 is a deficient number, since it is larger than the sum of its proper divisors (40371185).

90835137 is a wasteful number, since it uses less digits than its factorization.

90835137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10092799 (or 10092796 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 90835137 is about 9530.7469277072. The cubic root of 90835137 is about 449.5223524449.

The spelling of 90835137 in words is "ninety million, eight hundred thirty-five thousand, one hundred thirty-seven".