1252013637239 has 8 divisors (see below), whose sum is σ = 1269772210080. Its totient is φ = 1234271488896.

The previous prime is 1252013637197. The next prime is 1252013637263. The reversal of 1252013637239 is 9327363102521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252013637239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252013637239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252013637299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3952547 + ... + 4257540.

It is an arithmetic number, because the mean of its divisors is an integer number (158721526260).

Almost surely, 2^{1252013637239} is an apocalyptic number.

1252013637239 is a deficient number, since it is larger than the sum of its proper divisors (17758572841).

1252013637239 is an equidigital number, since it uses as much as digits as its factorization.

1252013637239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212249.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 1252013637239 in words is "one trillion, two hundred fifty-two billion, thirteen million, six hundred thirty-seven thousand, two hundred thirty-nine".