3925145 has 24 divisors (see below), whose sum is σ = 5640264. Its totient is φ = 2612736.

The previous prime is 3925133. The next prime is 3925151. The reversal of 3925145 is 5415293.

It can be written as a sum of positive squares in 4 ways, for example, as 405769 + 3519376 = 637^2 + 1876^2 .

It is not a de Polignac number, because 3925145 - 2¹⁰ = 3924121 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 8849 + ... + 9281.

It is an arithmetic number, because the mean of its divisors is an integer number (235011).

Almost surely, 2^3925145 is an apocalyptic number.

3925145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3925145 is a deficient number, since it is larger than the sum of its proper divisors (1715119).

3925145 is a wasteful number, since it uses less digits than its factorization.

3925145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 482 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 3925145 is about 1981.1978699766. The cubic root of 3925145 is about 157.7436557868.

The spelling of 3925145 in words is "three million, nine hundred twenty-five thousand, one hundred forty-five".