91631114 has 4 divisors (see below), whose sum is σ = 137446674. Its totient is φ = 45815556.

The previous prime is 91631101. The next prime is 91631119. The reversal of 91631114 is 41113619.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61105489 + 30525625 = 7817^2 + 5525^2 .

It is a super-2 number, since 2×91631114² = 16792522105761992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91631119) 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 as a sum of consecutive naturals, namely, 22907777 + ... + 22907780.

Almost surely, 2^91631114 is an apocalyptic number.

91631114 is a deficient number, since it is larger than the sum of its proper divisors (45815560).

91631114 is a wasteful number, since it uses less digits than its factorization.

91631114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45815559.

The product of its digits is 648, while the sum is 26.

The square root of 91631114 is about 9572.4142200387. The cubic root of 91631114 is about 450.8315718258.

The spelling of 91631114 in words is "ninety-one million, six hundred thirty-one thousand, one hundred fourteen".