90131240135 has 8 divisors (see below), whose sum is σ = 114519693456. Its totient is φ = 67863521920.

The previous prime is 90131240077. The next prime is 90131240141. The reversal of 90131240135 is 53104213109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90131240135 - 2¹⁴ = 90131223751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90131240098 and 90131240107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530183681 + ... + 530183850.

It is an arithmetic number, because the mean of its divisors is an integer number (14314961682).

Almost surely, 2^90131240135 is an apocalyptic number.

90131240135 is a deficient number, since it is larger than the sum of its proper divisors (24388453321).

90131240135 is a wasteful number, since it uses less digits than its factorization.

90131240135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060367553.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 90131240135 in words is "ninety billion, one hundred thirty-one million, two hundred forty thousand, one hundred thirty-five".