3144825 has 30 divisors (see below), whose sum is σ = 5829054. Its totient is φ = 1676160.

The previous prime is 3144821. The next prime is 3144829. The reversal of 3144825 is 5284413.

It is an interprime number because it is at equal distance from previous prime (3144821) and next prime (3144829).

It can be written as a sum of positive squares in 3 ways, for example, as 1296 + 3143529 = 36^2 + 1773^2 .

It is not a de Polignac number, because 3144825 - 2² = 3144821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3144821) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1249 + ... + 2801.

Almost surely, 2^3144825 is an apocalyptic number.

It is an amenable number.

3144825 is a deficient number, since it is larger than the sum of its proper divisors (2684229).

3144825 is a wasteful number, since it uses less digits than its factorization.

3144825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1561 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 3144825 is about 1773.3654445714. The cubic root of 3144825 is about 146.5094015640.

It can be divided in two parts, 3144 and 825, that added together give a square (3969 = 63²).

The spelling of 3144825 in words is "three million, one hundred forty-four thousand, eight hundred twenty-five".