90041231 has 8 divisors (see below), whose sum is σ = 108957600. Its totient is φ = 72638208.

The previous prime is 90041221. The next prime is 90041243. The reversal of 90041231 is 13214009.

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

It is a cyclic number.

It is not a de Polignac number, because 90041231 - 2²² = 85846927 is a prime.

It is a super-2 number, since 2×90041231² = 16214846559990722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90041221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378206 + ... + 378443.

It is an arithmetic number, because the mean of its divisors is an integer number (13619700).

Almost surely, 2^90041231 is an apocalyptic number.

90041231 is a deficient number, since it is larger than the sum of its proper divisors (18916369).

90041231 is a wasteful number, since it uses less digits than its factorization.

90041231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756673.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 90041231 is about 9489.0057961833. The cubic root of 90041231 is about 448.2088985780.

The spelling of 90041231 in words is "ninety million, forty-one thousand, two hundred thirty-one".