129283951 has 2 divisors, whose sum is σ = 129283952. Its totient is φ = 129283950.

The previous prime is 129283901. The next prime is 129283969. The reversal of 129283951 is 159382921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129283951 - 2⁷ = 129283823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129283901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64641975 + 64641976.

It is an arithmetic number, because the mean of its divisors is an integer number (64641976).

Almost surely, 2^129283951 is an apocalyptic number.

129283951 is a deficient number, since it is larger than the sum of its proper divisors (1).

129283951 is an equidigital number, since it uses as much as digits as its factorization.

129283951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 129283951 is about 11370.3100661328. The cubic root of 129283951 is about 505.6478969719.

The spelling of 129283951 in words is "one hundred twenty-nine million, two hundred eighty-three thousand, nine hundred fifty-one".