3140625 has 28 divisors (see below), whose sum is σ = 5312432. Its totient is φ = 1650000.

The previous prime is 3140623. The next prime is 3140633. The reversal of 3140625 is 5260413.

It is a happy number.

It is not a de Polignac number, because 3140625 - 2¹ = 3140623 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

3140625 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3140623) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 46842 + ... + 46908.

Almost surely, 2^3140625 is an apocalyptic number.

It is an amenable number.

3140625 is a deficient number, since it is larger than the sum of its proper divisors (2171807).

3140625 is an frugal number, since it uses more digits than its factorization.

3140625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3140625 is about 1772.1808598447. The cubic root of 3140625 is about 146.4441500663. Note that the first 3 decimals are identical.

It can be divided in two parts, 3 and 140625, that multiplied together give a cube (421875 = 75³).

The spelling of 3140625 in words is "three million, one hundred forty thousand, six hundred twenty-five".