3951145 has 24 divisors (see below), whose sum is σ = 5486400. Its totient is φ = 2708640.

The previous prime is 3951139. The next prime is 3951151. The reversal of 3951145 is 5411593.

It is an interprime number because it is at equal distance from previous prime (3951139) and next prime (3951151).

It is not a de Polignac number, because 3951145 - 2⁵ = 3951113 is a prime.

It is a super-2 number, since 2×3951145² = 31223093622050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19756 + ... + 19954.

It is an arithmetic number, because the mean of its divisors is an integer number (228600).

Almost surely, 2^3951145 is an apocalyptic number.

It is an amenable number.

3951145 is a deficient number, since it is larger than the sum of its proper divisors (1535255).

3951145 is a wasteful number, since it uses less digits than its factorization.

3951145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 234 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 3951145 is about 1987.7487265749. The cubic root of 3951145 is about 158.0911854141.

It can be divided in two parts, 3951 and 145, that added together give a 12-th power (4096 = 2¹²).

The spelling of 3951145 in words is "three million, nine hundred fifty-one thousand, one hundred forty-five".