3945129 has 8 divisors (see below), whose sum is σ = 5269440. Its totient is φ = 2625456.

The previous prime is 3945127. The next prime is 3945157. The reversal of 3945129 is 9215493.

3945129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3945129 - 2¹ = 3945127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3945129.

It is not an unprimeable number, because it can be changed into a prime (3945127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (658680).

Almost surely, 2^3945129 is an apocalyptic number.

It is an amenable number.

3945129 is a deficient number, since it is larger than the sum of its proper divisors (1324311).

3945129 is a wasteful number, since it uses less digits than its factorization.

3945129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319.

The product of its digits is 9720, while the sum is 33.

The square root of 3945129 is about 1986.2348803704. The cubic root of 3945129 is about 158.0109082892.

The spelling of 3945129 in words is "three million, nine hundred forty-five thousand, one hundred twenty-nine".