129874143 has 8 divisors (see below), whose sum is σ = 197903488. Its totient is φ = 74213784.

The previous prime is 129874133. The next prime is 129874153. The reversal of 129874143 is 341478921.

It is an interprime number because it is at equal distance from previous prime (129874133) and next prime (129874153).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129874143 - 2⁴ = 129874127 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129874133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3092221 + ... + 3092262.

It is an arithmetic number, because the mean of its divisors is an integer number (24737936).

Almost surely, 2^129874143 is an apocalyptic number.

129874143 is a deficient number, since it is larger than the sum of its proper divisors (68029345).

129874143 is an equidigital number, since it uses as much as digits as its factorization.

129874143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184493.

The product of its digits is 48384, while the sum is 39.

The square root of 129874143 is about 11396.2337199620. The cubic root of 129874143 is about 506.4161706600.

The spelling of 129874143 in words is "one hundred twenty-nine million, eight hundred seventy-four thousand, one hundred forty-three".