91852131 has 8 divisors (see below), whose sum is σ = 139965184. Its totient is φ = 52486920.

The previous prime is 91852121. The next prime is 91852141. The reversal of 91852131 is 13125819.

It is an interprime number because it is at equal distance from previous prime (91852121) and next prime (91852141).

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

It is not a de Polignac number, because 91852131 - 2⁹ = 91851619 is a prime.

It is a super-2 number, since 2×91852131² = 16873627938482322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91852121) 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, 2186935 + ... + 2186976.

It is an arithmetic number, because the mean of its divisors is an integer number (17495648).

Almost surely, 2^91852131 is an apocalyptic number.

91852131 is a deficient number, since it is larger than the sum of its proper divisors (48113053).

91852131 is a wasteful number, since it uses less digits than its factorization.

91852131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373921.

The product of its digits is 2160, while the sum is 30.

The square root of 91852131 is about 9583.9517423660. The cubic root of 91852131 is about 451.1937538825.

The spelling of 91852131 in words is "ninety-one million, eight hundred fifty-two thousand, one hundred thirty-one".