129153049 has 2 divisors, whose sum is σ = 129153050. Its totient is φ = 129153048.

The previous prime is 129153007. The next prime is 129153061. The reversal of 129153049 is 940351921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67765824 + 61387225 = 8232^2 + 7835^2 .

It is a cyclic number.

It is not a de Polignac number, because 129153049 - 2²⁵ = 95598617 is a prime.

It is not a weakly prime, because it can be changed into another prime (129153149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64576524 + 64576525.

It is an arithmetic number, because the mean of its divisors is an integer number (64576525).

Almost surely, 2^129153049 is an apocalyptic number.

It is an amenable number.

129153049 is a deficient number, since it is larger than the sum of its proper divisors (1).

129153049 is an equidigital number, since it uses as much as digits as its factorization.

129153049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 129153049 is about 11364.5523009048. The cubic root of 129153049 is about 505.4771805691.

The spelling of 129153049 in words is "one hundred twenty-nine million, one hundred fifty-three thousand, forty-nine".