90165241 has 4 divisors (see below), whose sum is σ = 94910800. Its totient is φ = 85419684.

The previous prime is 90165239. The next prime is 90165253. The reversal of 90165241 is 14256109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90165241 - 2¹ = 90165239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90165211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372751 + ... + 2372788.

It is an arithmetic number, because the mean of its divisors is an integer number (23727700).

Almost surely, 2^90165241 is an apocalyptic number.

It is an amenable number.

90165241 is a deficient number, since it is larger than the sum of its proper divisors (4745559).

90165241 is a wasteful number, since it uses less digits than its factorization.

90165241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745558.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 90165241 is about 9495.5379521120. The cubic root of 90165241 is about 448.4145706066.

The spelling of 90165241 in words is "ninety million, one hundred sixty-five thousand, two hundred forty-one".