1252164479 has 2 divisors, whose sum is σ = 1252164480. Its totient is φ = 1252164478.

The previous prime is 1252164451. The next prime is 1252164481. The reversal of 1252164479 is 9744612521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252164479 is a prime.

Together with 1252164481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252164499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626082239 + 626082240.

It is an arithmetic number, because the mean of its divisors is an integer number (626082240).

Almost surely, 2^1252164479 is an apocalyptic number.

1252164479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252164479 is an equidigital number, since it uses as much as digits as its factorization.

1252164479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 1252164479 is about 35385.9361752660. The cubic root of 1252164479 is about 1077.8387503013.

The spelling of 1252164479 in words is "one billion, two hundred fifty-two million, one hundred sixty-four thousand, four hundred seventy-nine".