1373239 has 4 divisors (see below), whose sum is σ = 1569424. Its totient is φ = 1177056.

The previous prime is 1373233. The next prime is 1373321. The reversal of 1373239 is 9323731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9323731 = 2137 ⋅4363.

It is a cyclic number.

It is not a de Polignac number, because 1373239 - 2⁹ = 1372727 is a prime.

It is a super-2 number, since 2×1373239² = 3771570702242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373233) 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, 98082 + ... + 98095.

It is an arithmetic number, because the mean of its divisors is an integer number (392356).

2^1373239 is an apocalyptic number.

1373239 is a deficient number, since it is larger than the sum of its proper divisors (196185).

1373239 is an equidigital number, since it uses as much as digits as its factorization.

1373239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196184.

The product of its digits is 3402, while the sum is 28.

The square root of 1373239 is about 1171.8528064565. The cubic root of 1373239 is about 111.1515123819.

The spelling of 1373239 in words is "one million, three hundred seventy-three thousand, two hundred thirty-nine".