1625313 has 4 divisors (see below), whose sum is σ = 2167088. Its totient is φ = 1083540.

The previous prime is 1625311. The next prime is 1625321. The reversal of 1625313 is 3135261.

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 not a de Polignac number, because 1625313 - 2¹ = 1625311 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1625313.

It is not an unprimeable number, because it can be changed into a prime (1625311) 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, 270883 + ... + 270888.

It is an arithmetic number, because the mean of its divisors is an integer number (541772).

2^1625313 is an apocalyptic number.

It is an amenable number.

1625313 is a deficient number, since it is larger than the sum of its proper divisors (541775).

1625313 is an equidigital number, since it uses as much as digits as its factorization.

1625313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541774.

The product of its digits is 540, while the sum is 21.

The square root of 1625313 is about 1274.8776411876. The cubic root of 1625313 is about 117.5742822887.

The spelling of 1625313 in words is "one million, six hundred twenty-five thousand, three hundred thirteen".