91014985 has 8 divisors (see below), whose sum is σ = 109773576. Its totient is φ = 72441600.

The previous prime is 91014953. The next prime is 91015019. The reversal of 91014985 is 58941019.

It can be written as a sum of positive squares in 4 ways, for example, as 53523856 + 37491129 = 7316^2 + 6123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91014985 - 2⁵ = 91014953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45216 + ... + 47185.

It is an arithmetic number, because the mean of its divisors is an integer number (13721697).

Almost surely, 2^91014985 is an apocalyptic number.

It is an amenable number.

91014985 is a deficient number, since it is larger than the sum of its proper divisors (18758591).

91014985 is a wasteful number, since it uses less digits than its factorization.

91014985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92603.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 91014985 is about 9540.1774092519. The cubic root of 91014985 is about 449.8188324225.

The spelling of 91014985 in words is "ninety-one million, fourteen thousand, nine hundred eighty-five".