1313939 has 6 divisors (see below), whose sum is σ = 1444380. Its totient is φ = 1194380.

The previous prime is 1313929. The next prime is 1313953. The reversal of 1313939 is 9393131.

It is a de Polignac number, because none of the positive numbers 2^k-1313939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5309 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (240730).

2^1313939 is an apocalyptic number.

1313939 is a deficient number, since it is larger than the sum of its proper divisors (130441).

1313939 is a wasteful number, since it uses less digits than its factorization.

1313939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10881 (or 10870 counting only the distinct ones).

The product of its digits is 2187, while the sum is 29.

The square root of 1313939 is about 1146.2717827810. The cubic root of 1313939 is about 109.5279773941.

The spelling of 1313939 in words is "one million, three hundred thirteen thousand, nine hundred thirty-nine".