1295839256 has 16 divisors (see below), whose sum is σ = 2481395040. Its totient is φ = 634133920.

The previous prime is 1295839253. The next prime is 1295839283. The reversal of 1295839256 is 6529385921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295839253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722815 + ... + 1723566.

It is an arithmetic number, because the mean of its divisors is an integer number (155087190).

Almost surely, 2^1295839256 is an apocalyptic number.

It is an amenable number.

1295839256 is a deficient number, since it is larger than the sum of its proper divisors (1185555784).

1295839256 is a wasteful number, since it uses less digits than its factorization.

1295839256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446434 (or 3446430 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 50.

The square root of 1295839256 is about 35997.7673752137. The cubic root of 1295839256 is about 1090.2272780281.

It can be divided in two parts, 129 and 5839256, that added together give a palindrome (5839385).

The spelling of 1295839256 in words is "one billion, two hundred ninety-five million, eight hundred thirty-nine thousand, two hundred fifty-six".