90542179 has 16 divisors (see below), whose sum is σ = 113545152. Its totient is φ = 70282368.

The previous prime is 90542161. The next prime is 90542183. The reversal of 90542179 is 97124509.

It is not a de Polignac number, because 90542179 - 2¹⁷ = 90411107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90542149) 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, 4564 + ... + 14209.

It is an arithmetic number, because the mean of its divisors is an integer number (7096572).

Almost surely, 2^90542179 is an apocalyptic number.

90542179 is a deficient number, since it is larger than the sum of its proper divisors (23002973).

90542179 is a wasteful number, since it uses less digits than its factorization.

90542179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18846.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 90542179 is about 9515.3654159995. The cubic root of 90542179 is about 449.0385712306.

The spelling of 90542179 in words is "ninety million, five hundred forty-two thousand, one hundred seventy-nine".