3125145 has 16 divisors (see below), whose sum is σ = 5095872. Its totient is φ = 1634880.

The previous prime is 3125117. The next prime is 3125147. The reversal of 3125145 is 5415213.

It is not a de Polignac number, because 3125145 - 2⁵ = 3125113 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3125147) 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, 1171 + ... + 2760.

It is an arithmetic number, because the mean of its divisors is an integer number (318492).

Almost surely, 2^3125145 is an apocalyptic number.

It is an amenable number.

3125145 is a deficient number, since it is larger than the sum of its proper divisors (1970727).

3125145 is a wasteful number, since it uses less digits than its factorization.

3125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992.

The product of its digits is 600, while the sum is 21.

The square root of 3125145 is about 1767.8079646839. The cubic root of 3125145 is about 146.2031481161.

The spelling of 3125145 in words is "three million, one hundred twenty-five thousand, one hundred forty-five".