1595641 has 4 divisors (see below), whose sum is σ = 1606500. Its totient is φ = 1584784.

The previous prime is 1595623. The next prime is 1595647. The reversal of 1595641 is 1465951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1465951 = 23 ⋅63737.

It can be written as a sum of positive squares in 2 ways, for example, as 921600 + 674041 = 960^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1595641 - 2⁷ = 1595513 is a prime.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (1595647) 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, 5206 + ... + 5503.

It is an arithmetic number, because the mean of its divisors is an integer number (401625).

2^1595641 is an apocalyptic number.

It is an amenable number.

1595641 is a deficient number, since it is larger than the sum of its proper divisors (10859).

1595641 is a wasteful number, since it uses less digits than its factorization.

1595641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10858.

The product of its digits is 5400, while the sum is 31.

The square root of 1595641 is about 1263.1868428700. The cubic root of 1595641 is about 116.8543979815.

The spelling of 1595641 in words is "one million, five hundred ninety-five thousand, six hundred forty-one".