3130625 has 10 divisors (see below), whose sum is σ = 3912810. Its totient is φ = 2504000.

The previous prime is 3130619. The next prime is 3130627. The reversal of 3130625 is 5260313.

It can be written as a sum of positive squares in 5 ways, for example, as 1270129 + 1860496 = 1127^2 + 1364^2 .

It is not a de Polignac number, because 3130625 - 2¹⁰ = 3129601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3130597 and 3130606.

It is not an unprimeable number, because it can be changed into a prime (3130627) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1880 + ... + 3129.

It is an arithmetic number, because the mean of its divisors is an integer number (391281).

Almost surely, 2^3130625 is an apocalyptic number.

It is an amenable number.

3130625 is a deficient number, since it is larger than the sum of its proper divisors (782185).

3130625 is an frugal number, since it uses more digits than its factorization.

3130625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3130625 is about 1769.3572279220. The cubic root of 3130625 is about 146.2885548630.

Adding to 3130625 its reverse (5260313), we get a palindrome (8390938).

The spelling of 3130625 in words is "three million, one hundred thirty thousand, six hundred twenty-five".