3953139 has 4 divisors (see below), whose sum is σ = 5270856. Its totient is φ = 2635424.

The previous prime is 3953107. The next prime is 3953143. The reversal of 3953139 is 9313593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9313593 = 3 ⋅3104531.

It is a cyclic number.

It is not a de Polignac number, because 3953139 - 2⁵ = 3953107 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3953149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 658854 + ... + 658859.

It is an arithmetic number, because the mean of its divisors is an integer number (1317714).

Almost surely, 2^3953139 is an apocalyptic number.

3953139 is a deficient number, since it is larger than the sum of its proper divisors (1317717).

3953139 is a wasteful number, since it uses less digits than its factorization.

3953139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317716.

The product of its digits is 10935, while the sum is 33.

The square root of 3953139 is about 1988.2502357601. The cubic root of 3953139 is about 158.1177752431.

The spelling of 3953139 in words is "three million, nine hundred fifty-three thousand, one hundred thirty-nine".