129532453 has 2 divisors, whose sum is σ = 129532454. Its totient is φ = 129532452.

The previous prime is 129532427. The next prime is 129532457. The reversal of 129532453 is 354235921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73925604 + 55606849 = 8598^2 + 7457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129532453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129532457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64766226 + 64766227.

It is an arithmetic number, because the mean of its divisors is an integer number (64766227).

Almost surely, 2^129532453 is an apocalyptic number.

It is an amenable number.

129532453 is a deficient number, since it is larger than the sum of its proper divisors (1).

129532453 is an equidigital number, since it uses as much as digits as its factorization.

129532453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 129532453 is about 11381.2324903764. The cubic root of 129532453 is about 505.9716651581.

The spelling of 129532453 in words is "one hundred twenty-nine million, five hundred thirty-two thousand, four hundred fifty-three".