3129473225 has 12 divisors (see below), whose sum is σ = 3891131904. Its totient is φ = 2496749520.

The previous prime is 3129473161. The next prime is 3129473227. The reversal of 3129473225 is 5223749213.

It is not a de Polignac number, because 3129473225 - 2⁶ = 3129473161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3129473227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161369 + ... + 179718.

It is an arithmetic number, because the mean of its divisors is an integer number (324260992).

Almost surely, 2^3129473225 is an apocalyptic number.

It is an amenable number.

3129473225 is a deficient number, since it is larger than the sum of its proper divisors (761658679).

3129473225 is a wasteful number, since it uses less digits than its factorization.

3129473225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341464 (or 341459 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 3129473225 is about 55941.6948706419. The cubic root of 3129473225 is about 1462.7061252804.

The spelling of 3129473225 in words is "three billion, one hundred twenty-nine million, four hundred seventy-three thousand, two hundred twenty-five".