1374921239 has 4 divisors (see below), whose sum is σ = 1377217200. Its totient is φ = 1372625280.

The previous prime is 1374921227. The next prime is 1374921281. The reversal of 1374921239 is 9321294731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1374921239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1374921196 and 1374921205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374926239) 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, 1147082 + ... + 1148279.

It is an arithmetic number, because the mean of its divisors is an integer number (344304300).

Almost surely, 2^1374921239 is an apocalyptic number.

1374921239 is a deficient number, since it is larger than the sum of its proper divisors (2295961).

1374921239 is an equidigital number, since it uses as much as digits as its factorization.

1374921239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295960.

The product of its digits is 81648, while the sum is 41.

The square root of 1374921239 is about 37079.9304071623. The cubic root of 1374921239 is about 1111.9688130131.

The spelling of 1374921239 in words is "one billion, three hundred seventy-four million, nine hundred twenty-one thousand, two hundred thirty-nine".