91112930 has 16 divisors (see below), whose sum is σ = 164411640. Its totient is φ = 36354432.

The previous prime is 91112897. The next prime is 91112939. The reversal of 91112930 is 3921119.

It can be written as a sum of positive squares in 4 ways, for example, as 90992521 + 120409 = 9539^2 + 347^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91112930.

It is not an unprimeable number, because it can be changed into a prime (91112939) 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, 7049 + ... + 15228.

Almost surely, 2^91112930 is an apocalyptic number.

91112930 is a deficient number, since it is larger than the sum of its proper divisors (73298710).

91112930 is a wasteful number, since it uses less digits than its factorization.

91112930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22693.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 91112930 is about 9545.3093192416. The cubic root of 91112930 is about 449.9801308100.

The spelling of 91112930 in words is "ninety-one million, one hundred twelve thousand, nine hundred thirty".