129250453 has 2 divisors, whose sum is σ = 129250454. Its totient is φ = 129250452.

The previous prime is 129250441. The next prime is 129250489. The reversal of 129250453 is 354052921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71520849 + 57729604 = 8457^2 + 7598^2 .

It is a cyclic number.

It is not a de Polignac number, because 129250453 - 2⁵ = 129250421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129250403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64625226 + 64625227.

It is an arithmetic number, because the mean of its divisors is an integer number (64625227).

Almost surely, 2^129250453 is an apocalyptic number.

It is an amenable number.

129250453 is a deficient number, since it is larger than the sum of its proper divisors (1).

129250453 is an equidigital number, since it uses as much as digits as its factorization.

129250453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 129250453 is about 11368.8369238018. The cubic root of 129250453 is about 505.6042213874.

The spelling of 129250453 in words is "one hundred twenty-nine million, two hundred fifty thousand, four hundred fifty-three".