129252727199 has 2 divisors, whose sum is σ = 129252727200. Its totient is φ = 129252727198.

The previous prime is 129252727171. The next prime is 129252727207. The reversal of 129252727199 is 991727252921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129252727199 is a prime.

It is a super-2 number, since 2×129252727199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129252727129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64626363599 + 64626363600.

It is an arithmetic number, because the mean of its divisors is an integer number (64626363600).

Almost surely, 2^129252727199 is an apocalyptic number.

129252727199 is a deficient number, since it is larger than the sum of its proper divisors (1).

129252727199 is an equidigital number, since it uses as much as digits as its factorization.

129252727199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 56.

The spelling of 129252727199 in words is "one hundred twenty-nine billion, two hundred fifty-two million, seven hundred twenty-seven thousand, one hundred ninety-nine".