129190763 has 4 divisors (see below), whose sum is σ = 139128528. Its totient is φ = 119253000.

The previous prime is 129190757. The next prime is 129190777. The reversal of 129190763 is 367091921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129190763 - 2⁸ = 129190507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129190723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4968863 + ... + 4968888.

It is an arithmetic number, because the mean of its divisors is an integer number (34782132).

Almost surely, 2^129190763 is an apocalyptic number.

129190763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129190763 is a deficient number, since it is larger than the sum of its proper divisors (9937765).

129190763 is an equidigital number, since it uses as much as digits as its factorization.

129190763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937764.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 129190763 is about 11366.2114620484. The cubic root of 129190763 is about 505.5263772683.

The spelling of 129190763 in words is "one hundred twenty-nine million, one hundred ninety thousand, seven hundred sixty-three".