90111273 has 32 divisors (see below), whose sum is σ = 142534656. Its totient is φ = 49569408.

The previous prime is 90111269. The next prime is 90111277. The reversal of 90111273 is 37211109.

It is an interprime number because it is at equal distance from previous prime (90111269) and next prime (90111277).

It is not a de Polignac number, because 90111273 - 2² = 90111269 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90111277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65236 + ... + 66602.

It is an arithmetic number, because the mean of its divisors is an integer number (4454208).

Almost surely, 2^90111273 is an apocalyptic number.

It is an amenable number.

90111273 is a deficient number, since it is larger than the sum of its proper divisors (52423383).

90111273 is a wasteful number, since it uses less digits than its factorization.

90111273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 90111273 is about 9492.6957709599. The cubic root of 90111273 is about 448.3250872419.

The spelling of 90111273 in words is "ninety million, one hundred eleven thousand, two hundred seventy-three".