91214612 has 12 divisors (see below), whose sum is σ = 160147680. Its totient is φ = 45458136.

The previous prime is 91214597. The next prime is 91214659. The reversal of 91214612 is 21641219.

It is a super-3 number, since 3×91214612³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35912 + ... + 38367.

It is an arithmetic number, because the mean of its divisors is an integer number (13345640).

Almost surely, 2^91214612 is an apocalyptic number.

It is an amenable number.

91214612 is a deficient number, since it is larger than the sum of its proper divisors (68933068).

91214612 is a wasteful number, since it uses less digits than its factorization.

91214612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74590 (or 74588 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 91214612 is about 9550.6341150732. The cubic root of 91214612 is about 450.1474611380.

The spelling of 91214612 in words is "ninety-one million, two hundred fourteen thousand, six hundred twelve".