1274239 has 4 divisors (see below), whose sum is σ = 1305360. Its totient is φ = 1243120.

The previous prime is 1274227. The next prime is 1274249. The reversal of 1274239 is 9324721.

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

It is not a de Polignac number, because 1274239 - 2⁷ = 1274111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274209) 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, 15499 + ... + 15580.

It is an arithmetic number, because the mean of its divisors is an integer number (326340).

2^1274239 is an apocalyptic number.

1274239 is a deficient number, since it is larger than the sum of its proper divisors (31121).

1274239 is an equidigital number, since it uses as much as digits as its factorization.

1274239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31120.

The product of its digits is 3024, while the sum is 28.

The square root of 1274239 is about 1128.8219523025. The cubic root of 1274239 is about 108.4135663363.

Subtracting from 1274239 its product of digits (3024), we obtain a triangular number (1271215 = T₁₅₉₄).

The spelling of 1274239 in words is "one million, two hundred seventy-four thousand, two hundred thirty-nine".