91261112 has 16 divisors (see below), whose sum is σ = 171465000. Its totient is φ = 45537120.

The previous prime is 91261111. The next prime is 91261127. The reversal of 91261112 is 21116219.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91261111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7439 + ... + 15422.

Almost surely, 2^91261112 is an apocalyptic number.

It is an amenable number.

91261112 is a deficient number, since it is larger than the sum of its proper divisors (80203888).

91261112 is a wasteful number, since it uses less digits than its factorization.

91261112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366 (or 23362 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

The square root of 91261112 is about 9553.0681982283. The cubic root of 91261112 is about 450.2239412127.

The spelling of 91261112 in words is "ninety-one million, two hundred sixty-one thousand, one hundred twelve".