129914233 has 2 divisors, whose sum is σ = 129914234. Its totient is φ = 129914232.

The previous prime is 129914207. The next prime is 129914243. The reversal of 129914233 is 332419921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103164649 + 26749584 = 10157^2 + 5172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129914233 is a prime.

It is equal to p_7373635 and since 129914233 and 7373635 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (129914243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64957116 + 64957117.

It is an arithmetic number, because the mean of its divisors is an integer number (64957117).

Almost surely, 2^129914233 is an apocalyptic number.

It is an amenable number.

129914233 is a deficient number, since it is larger than the sum of its proper divisors (1).

129914233 is an equidigital number, since it uses as much as digits as its factorization.

129914233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 129914233 is about 11397.9924986815. The cubic root of 129914233 is about 506.4682727315.

The spelling of 129914233 in words is "one hundred twenty-nine million, nine hundred fourteen thousand, two hundred thirty-three".