1573013 has 4 divisors (see below), whose sum is σ = 1694028. Its totient is φ = 1452000.

The previous prime is 1573009. The next prime is 1573021. The reversal of 1573013 is 3103751.

It is a happy number.

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 528529 + 1044484 = 727^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1573013 - 2² = 1573009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1573613) 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, 60488 + ... + 60513.

It is an arithmetic number, because the mean of its divisors is an integer number (423507).

2^1573013 is an apocalyptic number.

1573013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1573013 is a deficient number, since it is larger than the sum of its proper divisors (121015).

1573013 is a wasteful number, since it uses less digits than its factorization.

1573013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121014.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 1573013 is about 1254.1981502139. The cubic root of 1573013 is about 116.2993901203.

Adding to 1573013 its reverse (3103751), we get a palindrome (4676764).

The spelling of 1573013 in words is "one million, five hundred seventy-three thousand, thirteen".