129645353 has 2 divisors, whose sum is σ = 129645354. Its totient is φ = 129645352.

The previous prime is 129645323. The next prime is 129645359. The reversal of 129645353 is 353546921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81938704 + 47706649 = 9052^2 + 6907^2 .

It is a cyclic number.

It is not a de Polignac number, because 129645353 - 2⁸ = 129645097 is a prime.

It is equal to p_7359293 and since 129645353 and 7359293 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (129645359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64822676 + 64822677.

It is an arithmetic number, because the mean of its divisors is an integer number (64822677).

Almost surely, 2^129645353 is an apocalyptic number.

It is an amenable number.

129645353 is a deficient number, since it is larger than the sum of its proper divisors (1).

129645353 is an equidigital number, since it uses as much as digits as its factorization.

129645353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 38.

The square root of 129645353 is about 11386.1913298521. The cubic root of 129645353 is about 506.1186234719.

The spelling of 129645353 in words is "one hundred twenty-nine million, six hundred forty-five thousand, three hundred fifty-three".