3157686147 has 32 divisors (see below), whose sum is σ = 5257359360. Its totient is φ = 1637788320.

The previous prime is 3157686139. The next prime is 3157686151. The reversal of 3157686147 is 7416867513.

It is not a de Polignac number, because 3157686147 - 2³ = 3157686139 is a prime.

It is a super-3 number, since 3×3157686147³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3157686096 and 3157686105.

It is not an unprimeable number, because it can be changed into a prime (3157686137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141858 + ... + 162600.

It is an arithmetic number, because the mean of its divisors is an integer number (164292480).

Almost surely, 2^3157686147 is an apocalyptic number.

3157686147 is a deficient number, since it is larger than the sum of its proper divisors (2099673213).

3157686147 is a wasteful number, since it uses less digits than its factorization.

3157686147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21423.

The product of its digits is 846720, while the sum is 48.

The square root of 3157686147 is about 56193.2927225305. The cubic root of 3157686147 is about 1467.0885263124.

The spelling of 3157686147 in words is "three billion, one hundred fifty-seven million, six hundred eighty-six thousand, one hundred forty-seven".