83116251 has 12 divisors (see below), whose sum is σ = 120484728. Its totient is φ = 55213344.

The previous prime is 83116249. The next prime is 83116261. The reversal of 83116251 is 15261138.

83116251 is a `hidden beast` number, since 8 + 31 + 1 + 625 + 1 = 666.

It is not a de Polignac number, because 83116251 - 2¹ = 83116249 is a prime.

It is a super-2 number, since 2×83116251² = 13816622360590002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83116261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13770 + ... + 18863.

It is an arithmetic number, because the mean of its divisors is an integer number (10040394).

Almost surely, 2^83116251 is an apocalyptic number.

83116251 is a deficient number, since it is larger than the sum of its proper divisors (37368477).

83116251 is a wasteful number, since it uses less digits than its factorization.

83116251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32922 (or 32919 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 83116251 is about 9116.8114491855. The cubic root of 83116251 is about 436.4106247814.

Adding to 83116251 its reverse (15261138), we get a palindrome (98377389).

The spelling of 83116251 in words is "eighty-three million, one hundred sixteen thousand, two hundred fifty-one".