129670963 has 2 divisors, whose sum is σ = 129670964. Its totient is φ = 129670962.

The previous prime is 129670949. The next prime is 129670993. The reversal of 129670963 is 369076921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129670963 - 2⁹ = 129670451 is a prime.

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 (129670993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64835481 + 64835482.

It is an arithmetic number, because the mean of its divisors is an integer number (64835482).

Almost surely, 2^129670963 is an apocalyptic number.

129670963 is a deficient number, since it is larger than the sum of its proper divisors (1).

129670963 is an equidigital number, since it uses as much as digits as its factorization.

129670963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 129670963 is about 11387.3158821559. The cubic root of 129670963 is about 506.1519473159.

The spelling of 129670963 in words is "one hundred twenty-nine million, six hundred seventy thousand, nine hundred sixty-three".