1395239 has 4 divisors (see below), whose sum is σ = 1398360. Its totient is φ = 1392120.

The previous prime is 1395223. The next prime is 1395263. The reversal of 1395239 is 9325931.

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

It is a cyclic number.

It is not a de Polignac number, because 1395239 - 2⁴ = 1395223 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 (1395209) 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, 749 + ... + 1830.

It is an arithmetic number, because the mean of its divisors is an integer number (349590).

2^1395239 is an apocalyptic number.

1395239 is a deficient number, since it is larger than the sum of its proper divisors (3121).

1395239 is an equidigital number, since it uses as much as digits as its factorization.

1395239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its digits is 7290, while the sum is 32.

The square root of 1395239 is about 1181.2023535364. The cubic root of 1395239 is about 111.7419388040.

The spelling of 1395239 in words is "one million, three hundred ninety-five thousand, two hundred thirty-nine".