90091141 has 16 divisors (see below), whose sum is σ = 108697600. Its totient is φ = 72942768.

The previous prime is 90091123. The next prime is 90091163. The reversal of 90091141 is 14119009.

It is a cyclic number.

It is not a de Polignac number, because 90091141 - 2⁷ = 90091013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90091181) 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, 57616 + ... + 59158.

It is an arithmetic number, because the mean of its divisors is an integer number (6793600).

Almost surely, 2^90091141 is an apocalyptic number.

It is an amenable number.

90091141 is a deficient number, since it is larger than the sum of its proper divisors (18606459).

90091141 is a wasteful number, since it uses less digits than its factorization.

90091141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 90091141 is about 9491.6353174782. The cubic root of 90091141 is about 448.2916975872.

The spelling of 90091141 in words is "ninety million, ninety-one thousand, one hundred forty-one".