1316884257 has 16 divisors (see below), whose sum is σ = 2101012480. Its totient is φ = 810390096.

The previous prime is 1316884249. The next prime is 1316884267. The reversal of 1316884257 is 7524886131.

1316884257 is a `hidden beast` number, since 1 + 316 + 8 + 84 + 257 = 666.

It is not a de Polignac number, because 1316884257 - 2³ = 1316884249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316884267) 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, 1875553 + ... + 1876254.

It is an arithmetic number, because the mean of its divisors is an integer number (131313280).

Almost surely, 2^1316884257 is an apocalyptic number.

It is an amenable number.

1316884257 is a deficient number, since it is larger than the sum of its proper divisors (784128223).

1316884257 is a wasteful number, since it uses less digits than its factorization.

1316884257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751829 (or 3751823 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 1316884257 is about 36288.8999144366. The cubic root of 1316884257 is about 1096.0975371953.

The spelling of 1316884257 in words is "one billion, three hundred sixteen million, eight hundred eighty-four thousand, two hundred fifty-seven".