3125445 has 16 divisors (see below), whose sum is σ = 5052672. Its totient is φ = 1649600.

The previous prime is 3125387. The next prime is 3125449. The reversal of 3125445 is 5445213.

It is not a de Polignac number, because 3125445 - 2⁸ = 3125189 is a prime.

3125445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (315792).

Almost surely, 2^3125445 is an apocalyptic number.

It is an amenable number.

3125445 is a deficient number, since it is larger than the sum of its proper divisors (1927227).

3125445 is a wasteful number, since it uses less digits than its factorization.

3125445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

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

The square root of 3125445 is about 1767.8928134929. The cubic root of 3125445 is about 146.2078262500.

It can be divided in two parts, 3125 and 445, that added together give a triangular number (3570 = T₈₄).

The spelling of 3125445 in words is "three million, one hundred twenty-five thousand, four hundred forty-five".