1395231 has 4 divisors (see below), whose sum is σ = 1860312. Its totient is φ = 930152.

The previous prime is 1395223. The next prime is 1395263. The reversal of 1395231 is 1325931.

It is a happy number.

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 1395231 - 2³ = 1395223 is a prime.

It is a super-2 number, since 2×1395231² = 3893339086722, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232536 + ... + 232541.

It is an arithmetic number, because the mean of its divisors is an integer number (465078).

2^1395231 is an apocalyptic number.

1395231 is a deficient number, since it is larger than the sum of its proper divisors (465081).

1395231 is an equidigital number, since it uses as much as digits as its factorization.

1395231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465080.

The product of its digits is 810, while the sum is 24.

The square root of 1395231 is about 1181.1989671516. The cubic root of 1395231 is about 111.7417252355.

The spelling of 1395231 in words is "one million, three hundred ninety-five thousand, two hundred thirty-one".