3145425 has 24 divisors (see below), whose sum is σ = 5508576. Its totient is φ = 1578240.

The previous prime is 3145399. The next prime is 3145447. The reversal of 3145425 is 5245413.

It is not a de Polignac number, because 3145425 - 2⁶ = 3145361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3145395 and 3145404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42 + ... + 2508.

It is an arithmetic number, because the mean of its divisors is an integer number (229524).

Almost surely, 2^3145425 is an apocalyptic number.

It is an amenable number.

3145425 is a deficient number, since it is larger than the sum of its proper divisors (2363151).

3145425 is a wasteful number, since it uses less digits than its factorization.

3145425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2492 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 3145425 is about 1773.5346063723. The cubic root of 3145425 is about 146.5187184631.

It can be divided in two parts, 3145 and 425, that added together give a triangular number (3570 = T₈₄).

The spelling of 3145425 in words is "three million, one hundred forty-five thousand, four hundred twenty-five".