129274963 has 2 divisors, whose sum is σ = 129274964. Its totient is φ = 129274962.

The previous prime is 129274961. The next prime is 129274979. The reversal of 129274963 is 369472921.

It is a weak prime.

It is an emirp because it is prime and its reverse (369472921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129274963 - 2¹ = 129274961 is a prime.

Together with 129274961, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (129274961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64637481 + 64637482.

It is an arithmetic number, because the mean of its divisors is an integer number (64637482).

Almost surely, 2^129274963 is an apocalyptic number.

129274963 is a deficient number, since it is larger than the sum of its proper divisors (1).

129274963 is an equidigital number, since it uses as much as digits as its factorization.

129274963 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 129274963 is about 11369.9148193819. The cubic root of 129274963 is about 505.6361789187.

The spelling of 129274963 in words is "one hundred twenty-nine million, two hundred seventy-four thousand, nine hundred sixty-three".