74129 has 8 divisors (see below), whose sum is σ = 84672. Its totient is φ = 64240.

The previous prime is 74101. The next prime is 74131. The reversal of 74129 is 92147.

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

It is a de Polignac number, because none of the positive numbers 2^k-74129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74149) 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, 107 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (10584).

2⁷⁴¹²⁹ is an apocalyptic number.

It is an amenable number.

74129 is a deficient number, since it is larger than the sum of its proper divisors (10543).

74129 is a wasteful number, since it uses less digits than its factorization.

74129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its digits is 504, while the sum is 23.

The square root of 74129 is about 272.2664136466. The cubic root of 74129 is about 42.0077461147.

74129 divided by its sum of digits (23) gives a palindrome (3223).

The spelling of 74129 in words is "seventy-four thousand, one hundred twenty-nine".