1395641 has 4 divisors (see below), whose sum is σ = 1503012. Its totient is φ = 1288272.

The previous prime is 1395629. The next prime is 1395643. The reversal of 1395641 is 1465931.

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

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 1000000 = 629^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395641 - 2⁶ = 1395577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1395643) 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, 53666 + ... + 53691.

It is an arithmetic number, because the mean of its divisors is an integer number (375753).

2^1395641 is an apocalyptic number.

It is an amenable number.

1395641 is a deficient number, since it is larger than the sum of its proper divisors (107371).

1395641 is a wasteful number, since it uses less digits than its factorization.

1395641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107370.

The product of its digits is 3240, while the sum is 29.

The square root of 1395641 is about 1181.3725068749. The cubic root of 1395641 is about 111.7526695691.

The spelling of 1395641 in words is "one million, three hundred ninety-five thousand, six hundred forty-one".