129765763 has 4 divisors (see below), whose sum is σ = 136595560. Its totient is φ = 122935968.

The previous prime is 129765761. The next prime is 129765773. The reversal of 129765763 is 367567921.

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 129765763 - 2¹ = 129765761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129765761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414870 + ... + 3414907.

It is an arithmetic number, because the mean of its divisors is an integer number (34148890).

Almost surely, 2^129765763 is an apocalyptic number.

129765763 is a deficient number, since it is larger than the sum of its proper divisors (6829797).

129765763 is an equidigital number, since it uses as much as digits as its factorization.

129765763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829796.

The product of its digits is 476280, while the sum is 46.

The square root of 129765763 is about 11391.4776477856. The cubic root of 129765763 is about 506.2752633229.

The spelling of 129765763 in words is "one hundred twenty-nine million, seven hundred sixty-five thousand, seven hundred sixty-three".