129193223 has 2 divisors, whose sum is σ = 129193224. Its totient is φ = 129193222.

The previous prime is 129193193. The next prime is 129193247. The reversal of 129193223 is 322391921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129193223 - 2²⁰ = 128144647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129193223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129193423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64596611 + 64596612.

It is an arithmetic number, because the mean of its divisors is an integer number (64596612).

Almost surely, 2^129193223 is an apocalyptic number.

129193223 is a deficient number, since it is larger than the sum of its proper divisors (1).

129193223 is an equidigital number, since it uses as much as digits as its factorization.

129193223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 129193223 is about 11366.3196770107. The cubic root of 129193223 is about 505.5295859264.

The spelling of 129193223 in words is "one hundred twenty-nine million, one hundred ninety-three thousand, two hundred twenty-three".