3116991451 has 4 divisors (see below), whose sum is σ = 3562275952. Its totient is φ = 2671706952.

The previous prime is 3116991419. The next prime is 3116991467. The reversal of 3116991451 is 1541996113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1541996113 = 7 ⋅220285159.

It is a cyclic number.

It is not a de Polignac number, because 3116991451 - 2⁵ = 3116991419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3116995451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222642240 + ... + 222642253.

It is an arithmetic number, because the mean of its divisors is an integer number (890568988).

Almost surely, 2^3116991451 is an apocalyptic number.

3116991451 is a deficient number, since it is larger than the sum of its proper divisors (445284501).

3116991451 is an equidigital number, since it uses as much as digits as its factorization.

3116991451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445284500.

The product of its digits is 29160, while the sum is 40.

The square root of 3116991451 is about 55830.0228461354. The cubic root of 3116991451 is about 1460.7588866082.

The spelling of 3116991451 in words is "three billion, one hundred sixteen million, nine hundred ninety-one thousand, four hundred fifty-one".