129924453 has 4 divisors (see below), whose sum is σ = 173232608. Its totient is φ = 86616300.

The previous prime is 129924409. The next prime is 129924467. The reversal of 129924453 is 354429921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 129924453 - 2¹⁴ = 129908069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129924653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21654073 + ... + 21654078.

It is an arithmetic number, because the mean of its divisors is an integer number (43308152).

Almost surely, 2^129924453 is an apocalyptic number.

It is an amenable number.

129924453 is a deficient number, since it is larger than the sum of its proper divisors (43308155).

129924453 is an equidigital number, since it uses as much as digits as its factorization.

129924453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43308154.

The product of its digits is 77760, while the sum is 39.

The square root of 129924453 is about 11398.4408144272. The cubic root of 129924453 is about 506.4815532113.

It can be divided in two parts, 1299 and 24453, that added together give a palindrome (25752).

The spelling of 129924453 in words is "one hundred twenty-nine million, nine hundred twenty-four thousand, four hundred fifty-three".