1395813 has 4 divisors (see below), whose sum is σ = 1861088. Its totient is φ = 930540.

The previous prime is 1395809. The next prime is 1395817. The reversal of 1395813 is 3185931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1395809) and next prime (1395817).

It is not a de Polignac number, because 1395813 - 2² = 1395809 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395817) 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, 232633 + ... + 232638.

It is an arithmetic number, because the mean of its divisors is an integer number (465272).

2^1395813 is an apocalyptic number.

It is an amenable number.

1395813 is a deficient number, since it is larger than the sum of its proper divisors (465275).

1395813 is an equidigital number, since it uses as much as digits as its factorization.

1395813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465274.

The product of its digits is 3240, while the sum is 30.

The square root of 1395813 is about 1181.4453013153. The cubic root of 1395813 is about 111.7572602123.

The spelling of 1395813 in words is "one million, three hundred ninety-five thousand, eight hundred thirteen".