90141531 has 16 divisors (see below), whose sum is σ = 132793344. Its totient is φ = 54099584.

The previous prime is 90141517. The next prime is 90141533. The reversal of 90141531 is 13514109.

It is a cyclic number.

It is not a de Polignac number, because 90141531 - 2¹⁵ = 90108763 is a prime.

It is a super-3 number, since 3×90141531³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (90141533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37251 + ... + 39596.

It is an arithmetic number, because the mean of its divisors is an integer number (8299584).

Almost surely, 2^90141531 is an apocalyptic number.

90141531 is a deficient number, since it is larger than the sum of its proper divisors (42651813).

90141531 is a wasteful number, since it uses less digits than its factorization.

90141531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76890.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 90141531 is about 9494.2893888906. The cubic root of 90141531 is about 448.3752618833.

The spelling of 90141531 in words is "ninety million, one hundred forty-one thousand, five hundred thirty-one".