129274333 has 2 divisors, whose sum is σ = 129274334. Its totient is φ = 129274332.

The previous prime is 129274291. The next prime is 129274349. The reversal of 129274333 is 333472921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122832889 + 6441444 = 11083^2 + 2538^2 .

It is a cyclic number.

It is not a de Polignac number, because 129274333 - 2⁹ = 129273821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129214333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64637166 + 64637167.

It is an arithmetic number, because the mean of its divisors is an integer number (64637167).

Almost surely, 2^129274333 is an apocalyptic number.

It is an amenable number.

129274333 is a deficient number, since it is larger than the sum of its proper divisors (1).

129274333 is an equidigital number, since it uses as much as digits as its factorization.

129274333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 34.

The square root of 129274333 is about 11369.8871146551. The cubic root of 129274333 is about 505.6353575395.

It can be divided in two parts, 1292 and 74333, that added together give a square (75625 = 275²).

The spelling of 129274333 in words is "one hundred twenty-nine million, two hundred seventy-four thousand, three hundred thirty-three".