129383453 has 2 divisors, whose sum is σ = 129383454. Its totient is φ = 129383452.

The previous prime is 129383411. The next prime is 129383467. The reversal of 129383453 is 354383921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121837444 + 7546009 = 11038^2 + 2747^2 .

It is a cyclic number.

It is not a de Polignac number, because 129383453 - 2⁶ = 129383389 is a prime.

It is a super-3 number, since 3×129383453³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129383473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64691726 + 64691727.

It is an arithmetic number, because the mean of its divisors is an integer number (64691727).

Almost surely, 2^129383453 is an apocalyptic number.

It is an amenable number.

129383453 is a deficient number, since it is larger than the sum of its proper divisors (1).

129383453 is an equidigital number, since it uses as much as digits as its factorization.

129383453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 129383453 is about 11374.6847428841. The cubic root of 129383453 is about 505.7775858584. Note that the first 3 decimals are identical.

The spelling of 129383453 in words is "one hundred twenty-nine million, three hundred eighty-three thousand, four hundred fifty-three".