3945051 has 32 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 2319840.

The previous prime is 3945047. The next prime is 3945059. The reversal of 3945051 is 1505493.

It is not a de Polignac number, because 3945051 - 2² = 3945047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

3945051 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3945059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10810 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (205200).

Almost surely, 2^3945051 is an apocalyptic number.

3945051 is a deficient number, since it is larger than the sum of its proper divisors (2621349).

3945051 is a wasteful number, since it uses less digits than its factorization.

3945051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 3945051 is about 1986.2152451333. The cubic root of 3945051 is about 158.0098669264.

It can be divided in two parts, 394 and 5051, that added together give a palindrome (5445).

The spelling of 3945051 in words is "three million, nine hundred forty-five thousand, fifty-one".