3975145 has 8 divisors (see below), whose sum is σ = 4783680. Its totient is φ = 3171120.

The previous prime is 3975109. The next prime is 3975151. The reversal of 3975145 is 5415793.

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

It is not a de Polignac number, because 3975145 - 2⁷ = 3975017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3975145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (597960).

Almost surely, 2^3975145 is an apocalyptic number.

It is an amenable number.

3975145 is a deficient number, since it is larger than the sum of its proper divisors (808535).

3975145 is a wasteful number, since it uses less digits than its factorization.

3975145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its digits is 18900, while the sum is 34.

The square root of 3975145 is about 1993.7765672211. The cubic root of 3975145 is about 158.4106313860.

The spelling of 3975145 in words is "three million, nine hundred seventy-five thousand, one hundred forty-five".