129064453 has 4 divisors (see below), whose sum is σ = 147502240. Its totient is φ = 110626668.

The previous prime is 129064423. The next prime is 129064483. The reversal of 129064453 is 354460921.

It is a happy number.

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 (129064423) and next prime (129064483).

It is a cyclic number.

It is not a de Polignac number, because 129064453 - 2⁵ = 129064421 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 (129064423) 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, 9218883 + ... + 9218896.

It is an arithmetic number, because the mean of its divisors is an integer number (36875560).

Almost surely, 2^129064453 is an apocalyptic number.

It is an amenable number.

129064453 is a deficient number, since it is larger than the sum of its proper divisors (18437787).

129064453 is an equidigital number, since it uses as much as digits as its factorization.

129064453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18437786.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 129064453 is about 11360.6537223876. The cubic root of 129064453 is about 505.3615722511.

The spelling of 129064453 in words is "one hundred twenty-nine million, sixty-four thousand, four hundred fifty-three".