1252613 has 4 divisors (see below), whose sum is σ = 1318560. Its totient is φ = 1186668.

The previous prime is 1252609. The next prime is 1252631. The reversal of 1252613 is 3162521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3162521 = 43 ⋅73547.

It is a cyclic number.

It is not a de Polignac number, because 1252613 - 2² = 1252609 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252663) 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, 32945 + ... + 32982.

It is an arithmetic number, because the mean of its divisors is an integer number (329640).

2^1252613 is an apocalyptic number.

It is an amenable number.

1252613 is a deficient number, since it is larger than the sum of its proper divisors (65947).

1252613 is an equidigital number, since it uses as much as digits as its factorization.

1252613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65946.

The product of its digits is 360, while the sum is 20.

The square root of 1252613 is about 1119.2019478182. The cubic root of 1252613 is about 107.7967427647.

It can be divided in two parts, 12 and 52613, that added together give a palindrome (52625).

The spelling of 1252613 in words is "one million, two hundred fifty-two thousand, six hundred thirteen".