919513085 has 32 divisors (see below), whose sum is σ = 1219823712. Its totient is φ = 662446080.

The previous prime is 919513061. The next prime is 919513097. The reversal of 919513085 is 580315919.

It can be written as a sum of positive squares in 16 ways, for example, as 31651876 + 887861209 = 5626^2 + 29797^2 .

It is not a de Polignac number, because 919513085 - 2¹⁴ = 919496701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189449 + ... + 194241.

It is an arithmetic number, because the mean of its divisors is an integer number (38119491).

Almost surely, 2^919513085 is an apocalyptic number.

It is an amenable number.

919513085 is a deficient number, since it is larger than the sum of its proper divisors (300310627).

919513085 is a wasteful number, since it uses less digits than its factorization.

919513085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4913.

The product of its (nonzero) digits is 48600, while the sum is 41.

The square root of 919513085 is about 30323.4741578204. The cubic root of 919513085 is about 972.4172132989.

The spelling of 919513085 in words is "nine hundred nineteen million, five hundred thirteen thousand, eighty-five".