129046523 has 2 divisors, whose sum is σ = 129046524. Its totient is φ = 129046522.

The previous prime is 129046501. The next prime is 129046543. The reversal of 129046523 is 325640921.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (325640921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129046523 - 2¹⁸ = 128784379 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129046523.

It is not a weakly prime, because it can be changed into another prime (129046543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64523261 + 64523262.

It is an arithmetic number, because the mean of its divisors is an integer number (64523262).

Almost surely, 2^129046523 is an apocalyptic number.

129046523 is a deficient number, since it is larger than the sum of its proper divisors (1).

129046523 is an equidigital number, since it uses as much as digits as its factorization.

129046523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 129046523 is about 11359.8645678547. The cubic root of 129046523 is about 505.3381690795.

The spelling of 129046523 in words is "one hundred twenty-nine million, forty-six thousand, five hundred twenty-three".