3145625 has 20 divisors (see below), whose sum is σ = 4498560. Its totient is φ = 2154000.

The previous prime is 3145609. The next prime is 3145627. The reversal of 3145625 is 5265413.

It is not a de Polignac number, because 3145625 - 2⁴ = 3145609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3145594 and 3145603.

It is not an unprimeable number, because it can be changed into a prime (3145627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4016 + ... + 4734.

It is an arithmetic number, because the mean of its divisors is an integer number (224928).

Almost surely, 2^3145625 is an apocalyptic number.

3145625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3145625 is a deficient number, since it is larger than the sum of its proper divisors (1352935).

3145625 is an frugal number, since it uses more digits than its factorization.

3145625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 731 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 3145625 is about 1773.5909900538. The cubic root of 3145625 is about 146.5218238328.

The spelling of 3145625 in words is "three million, one hundred forty-five thousand, six hundred twenty-five".