1590425 has 6 divisors (see below), whose sum is σ = 1972158. Its totient is φ = 1272320.

The previous prime is 1590403. The next prime is 1590437. The reversal of 1590425 is 5240951.

It can be written as a sum of positive squares in 3 ways, for example, as 123904 + 1466521 = 352^2 + 1211^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1590425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1590394 and 1590403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31784 + ... + 31833.

It is an arithmetic number, because the mean of its divisors is an integer number (328693).

2^1590425 is an apocalyptic number.

It is an amenable number.

1590425 is a deficient number, since it is larger than the sum of its proper divisors (381733).

1590425 is an equidigital number, since it uses as much as digits as its factorization.

1590425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63627 (or 63622 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1590425 is about 1261.1205334939. The cubic root of 1590425 is about 116.7269303170.

The spelling of 1590425 in words is "one million, five hundred ninety thousand, four hundred twenty-five".