1254532613 has 4 divisors (see below), whose sum is σ = 1262840928. Its totient is φ = 1246224300.

The previous prime is 1254532607. The next prime is 1254532621. The reversal of 1254532613 is 3162354521.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1254532613 - 2⁶ = 1254532549 is a prime.

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 1254532613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254532673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4153931 + ... + 4154232.

It is an arithmetic number, because the mean of its divisors is an integer number (315710232).

Almost surely, 2^1254532613 is an apocalyptic number.

It is an amenable number.

1254532613 is a deficient number, since it is larger than the sum of its proper divisors (8308315).

1254532613 is an equidigital number, since it uses as much as digits as its factorization.

1254532613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308314.

The product of its digits is 21600, while the sum is 32.

The square root of 1254532613 is about 35419.3818833700. The cubic root of 1254532613 is about 1078.5178035780.

The spelling of 1254532613 in words is "one billion, two hundred fifty-four million, five hundred thirty-two thousand, six hundred thirteen".