1395931 has 4 divisors (see below), whose sum is σ = 1415664. Its totient is φ = 1376200.

The previous prime is 1395923. The next prime is 1395943.

1395931 is nontrivially palindromic in base 10.

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 1395931 - 2³ = 1395923 is a prime.

It is a super-2 number, since 2×1395931² = 3897246713522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1395893 and 1395902.

It is not an unprimeable number, because it can be changed into a prime (1395991) 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, 9760 + ... + 9901.

It is an arithmetic number, because the mean of its divisors is an integer number (353916).

2^1395931 is an apocalyptic number.

1395931 is a deficient number, since it is larger than the sum of its proper divisors (19733).

1395931 is an equidigital number, since it uses as much as digits as its factorization.

1395931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732.

The product of its digits is 3645, while the sum is 31.

The square root of 1395931 is about 1181.4952390932. The cubic root of 1395931 is about 111.7604093889.

The spelling of 1395931 in words is "one million, three hundred ninety-five thousand, nine hundred thirty-one".