129942763 has 2 divisors, whose sum is σ = 129942764. Its totient is φ = 129942762.

The previous prime is 129942737. The next prime is 129942859. The reversal of 129942763 is 367249921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129942763 - 2²¹ = 127845611 is a prime.

It is not a weakly prime, because it can be changed into another prime (129946763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64971381 + 64971382.

It is an arithmetic number, because the mean of its divisors is an integer number (64971382).

Almost surely, 2^129942763 is an apocalyptic number.

129942763 is a deficient number, since it is larger than the sum of its proper divisors (1).

129942763 is an equidigital number, since it uses as much as digits as its factorization.

129942763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 129942763 is about 11399.2439661585. The cubic root of 129942763 is about 506.5053445798.

The spelling of 129942763 in words is "one hundred twenty-nine million, nine hundred forty-two thousand, seven hundred sixty-three".