91065315 has 16 divisors (see below), whose sum is σ = 158950656. Its totient is φ = 44152800.

The previous prime is 91065281. The next prime is 91065319. The reversal of 91065315 is 51356019.

It is not a de Polignac number, because 91065315 - 2¹⁹ = 90541027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91065319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275791 + ... + 276120.

It is an arithmetic number, because the mean of its divisors is an integer number (9934416).

Almost surely, 2^91065315 is an apocalyptic number.

91065315 is a deficient number, since it is larger than the sum of its proper divisors (67885341).

91065315 is a wasteful number, since it uses less digits than its factorization.

91065315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551930.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 91065315 is about 9542.8148363049. The cubic root of 91065315 is about 449.9017316287.

The spelling of 91065315 in words is "ninety-one million, sixty-five thousand, three hundred fifteen".