126252502639 has 8 divisors (see below), whose sum is σ = 127187862912. Its totient is φ = 125318448600.

The previous prime is 126252502613. The next prime is 126252502703. The reversal of 126252502639 is 936205252621.

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

It is a cyclic number.

It is not a de Polignac number, because 126252502639 - 2¹⁹ = 126251978351 is a prime.

It is a super-2 number, since 2×126252502639² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126252502595 and 126252502604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126252502609) 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, 132109 + ... + 519574.

It is an arithmetic number, because the mean of its divisors is an integer number (15898482864).

Almost surely, 2^126252502639 is an apocalyptic number.

126252502639 is a deficient number, since it is larger than the sum of its proper divisors (935360273).

126252502639 is a wasteful number, since it uses less digits than its factorization.

126252502639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653117.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 126252502639 in words is "one hundred twenty-six billion, two hundred fifty-two million, five hundred two thousand, six hundred thirty-nine".