129453 has 4 divisors (see below), whose sum is σ = 172608. Its totient is φ = 86300.

The previous prime is 129449. The next prime is 129457. The reversal of 129453 is 354921.

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 an interprime number because it is at equal distance from previous prime (129449) and next prime (129457).

It is a cyclic number.

It is not a de Polignac number, because 129453 - 2² = 129449 is a prime.

It is a D-number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21573 + ... + 21578.

It is an arithmetic number, because the mean of its divisors is an integer number (43152).

2¹²⁹⁴⁵³ is an apocalyptic number.

It is an amenable number.

129453 is a deficient number, since it is larger than the sum of its proper divisors (43155).

129453 is an equidigital number, since it uses as much as digits as its factorization.

129453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43154.

The product of its digits is 1080, while the sum is 24.

The square root of 129453 is about 359.7957754060. The cubic root of 129453 is about 50.5868192533.

The spelling of 129453 in words is "one hundred twenty-nine thousand, four hundred fifty-three".