91146612 has 24 divisors (see below), whose sum is σ = 213015712. Its totient is φ = 30333600.

The previous prime is 91146611. The next prime is 91146613. The reversal of 91146612 is 21664119.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (91146611) and next prime (91146613).

It is a self number, because there is not a number n which added to its sum of digits gives 91146612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91146611) 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, 2187 + ... + 13677.

Almost surely, 2^91146612 is an apocalyptic number.

It is an amenable number.

91146612 is an abundant number, since it is smaller than the sum of its proper divisors (121869100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91146612 is a wasteful number, since it uses less digits than its factorization.

91146612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12159 (or 12157 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 91146612 is about 9547.0734782969. The cubic root of 91146612 is about 450.0355724966.

The spelling of 91146612 in words is "ninety-one million, one hundred forty-six thousand, six hundred twelve".