91320514 has 12 divisors (see below), whose sum is σ = 140787234. Its totient is φ = 44424864.

The previous prime is 91320499. The next prime is 91320539. The reversal of 91320514 is 41502319.

It can be written as a sum of positive squares in 3 ways, for example, as 88679889 + 2640625 = 9417^2 + 1625^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13939 + ... + 19414.

Almost surely, 2^91320514 is an apocalyptic number.

91320514 is a deficient number, since it is larger than the sum of its proper divisors (49466720).

91320514 is a wasteful number, since it uses less digits than its factorization.

91320514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33429 (or 33392 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 91320514 is about 9556.1767459586. The cubic root of 91320514 is about 450.3216038478.

The spelling of 91320514 in words is "ninety-one million, three hundred twenty thousand, five hundred fourteen".