3456947139 has 16 divisors (see below), whose sum is σ = 4648479264. Its totient is φ = 2285107200.

The previous prime is 3456947083. The next prime is 3456947183. The reversal of 3456947139 is 9317496543.

3456947139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3456947139 - 2²⁴ = 3440169923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3456947091 and 3456947100.

It is not an unprimeable number, because it can be changed into a prime (3456947539) 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, 158199 + ... + 178719.

It is an arithmetic number, because the mean of its divisors is an integer number (290529954).

Almost surely, 2^3456947139 is an apocalyptic number.

3456947139 is a deficient number, since it is larger than the sum of its proper divisors (1191532125).

3456947139 is a wasteful number, since it uses less digits than its factorization.

3456947139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20998.

The product of its digits is 2449440, while the sum is 51.

The square root of 3456947139 is about 58795.8088557339. The cubic root of 3456947139 is about 1512.0433630414.

The spelling of 3456947139 in words is "three billion, four hundred fifty-six million, nine hundred forty-seven thousand, one hundred thirty-nine".