129257363 has 2 divisors, whose sum is σ = 129257364. Its totient is φ = 129257362.

The previous prime is 129257357. The next prime is 129257371. The reversal of 129257363 is 363752921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129257363 - 2⁶ = 129257299 is a prime.

It is not a weakly prime, because it can be changed into another prime (129257333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64628681 + 64628682.

It is an arithmetic number, because the mean of its divisors is an integer number (64628682).

Almost surely, 2^129257363 is an apocalyptic number.

129257363 is a deficient number, since it is larger than the sum of its proper divisors (1).

129257363 is an equidigital number, since it uses as much as digits as its factorization.

129257363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 129257363 is about 11369.1408206601. The cubic root of 129257363 is about 505.6132314471.

The spelling of 129257363 in words is "one hundred twenty-nine million, two hundred fifty-seven thousand, three hundred sixty-three".