129033523 has 2 divisors, whose sum is σ = 129033524. Its totient is φ = 129033522.

The previous prime is 129033521. The next prime is 129033529. The reversal of 129033523 is 325330921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129033523 - 2¹ = 129033521 is a prime.

Together with 129033521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 129033491 and 129033500.

It is not a weakly prime, because it can be changed into another prime (129033521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64516761 + 64516762.

It is an arithmetic number, because the mean of its divisors is an integer number (64516762).

Almost surely, 2^129033523 is an apocalyptic number.

129033523 is a deficient number, since it is larger than the sum of its proper divisors (1).

129033523 is an equidigital number, since it uses as much as digits as its factorization.

129033523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 129033523 is about 11359.2923635234. The cubic root of 129033523 is about 505.3211994454.

The spelling of 129033523 in words is "one hundred twenty-nine million, thirty-three thousand, five hundred twenty-three".