1252513 has 4 divisors (see below), whose sum is σ = 1273108. Its totient is φ = 1231920.

The previous prime is 1252507. The next prime is 1252523. The reversal of 1252513 is 3152521.

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 374544 + 877969 = 612^2 + 937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252523) 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, 10206 + ... + 10327.

It is an arithmetic number, because the mean of its divisors is an integer number (318277).

2^1252513 is an apocalyptic number.

It is an amenable number.

1252513 is a deficient number, since it is larger than the sum of its proper divisors (20595).

1252513 is an equidigital number, since it uses as much as digits as its factorization.

1252513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20594.

The product of its digits is 300, while the sum is 19.

The square root of 1252513 is about 1119.1572722366. The cubic root of 1252513 is about 107.7938741050.

It can be divided in two parts, 12 and 52513, that added together give a palindrome (52525).

The spelling of 1252513 in words is "one million, two hundred fifty-two thousand, five hundred thirteen".