3125545 has 4 divisors (see below), whose sum is σ = 3750660. Its totient is φ = 2500432.

The previous prime is 3125537. The next prime is 3125561. The reversal of 3125545 is 5455213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 514089 + 2611456 = 717^2 + 1616^2 .

It is a cyclic number.

It is not a de Polignac number, because 3125545 - 2³ = 3125537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312550 + ... + 312559.

It is an arithmetic number, because the mean of its divisors is an integer number (937665).

Almost surely, 2^3125545 is an apocalyptic number.

It is an amenable number.

3125545 is a deficient number, since it is larger than the sum of its proper divisors (625115).

3125545 is an equidigital number, since it uses as much as digits as its factorization.

3125545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625114.

The product of its digits is 3000, while the sum is 25.

The square root of 3125545 is about 1767.9210955243. The cubic root of 3125545 is about 146.2093855615.

The spelling of 3125545 in words is "three million, one hundred twenty-five thousand, five hundred forty-five".