3147425 has 6 divisors (see below), whose sum is σ = 3902838. Its totient is φ = 2517920.

The previous prime is 3147421. The next prime is 3147427. The reversal of 3147425 is 5247413.

It can be written as a sum of positive squares in 3 ways, for example, as 625681 + 2521744 = 791^2 + 1588^2 .

It is not a de Polignac number, because 3147425 - 2² = 3147421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3147394 and 3147403.

It is not an unprimeable number, because it can be changed into a prime (3147421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62924 + ... + 62973.

It is an arithmetic number, because the mean of its divisors is an integer number (650473).

Almost surely, 2^3147425 is an apocalyptic number.

It is an amenable number.

3147425 is a deficient number, since it is larger than the sum of its proper divisors (755413).

3147425 is a wasteful number, since it uses less digits than its factorization.

3147425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125907 (or 125902 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 3147425 is about 1774.0983625493. The cubic root of 3147425 is about 146.5497662388.

The spelling of 3147425 in words is "three million, one hundred forty-seven thousand, four hundred twenty-five".