3126945 has 8 divisors (see below), whose sum is σ = 5003136. Its totient is φ = 1667696.

The previous prime is 3126901. The next prime is 3126961. The reversal of 3126945 is 5496213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3126945 - 2⁶ = 3126881 is a prime.

3126945 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104217 + ... + 104246.

It is an arithmetic number, because the mean of its divisors is an integer number (625392).

Almost surely, 2^3126945 is an apocalyptic number.

It is an amenable number.

3126945 is a deficient number, since it is larger than the sum of its proper divisors (1876191).

3126945 is a wasteful number, since it uses less digits than its factorization.

3126945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208471.

The product of its digits is 6480, while the sum is 30.

The square root of 3126945 is about 1768.3169964687. The cubic root of 3126945 is about 146.2312124306.

The spelling of 3126945 in words is "three million, one hundred twenty-six thousand, nine hundred forty-five".