74498129 has 4 divisors (see below), whose sum is σ = 77067060. Its totient is φ = 71929200.

The previous prime is 74498119. The next prime is 74498143. The reversal of 74498129 is 92189447.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60450625 + 14047504 = 7775^2 + 3748^2 .

It is a cyclic number.

It is not a de Polignac number, because 74498129 - 2⁴ = 74498113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74498129.

It is not an unprimeable number, because it can be changed into a prime (74498119) 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, 1284422 + ... + 1284479.

It is an arithmetic number, because the mean of its divisors is an integer number (19266765).

Almost surely, 2^74498129 is an apocalyptic number.

It is an amenable number.

74498129 is a deficient number, since it is larger than the sum of its proper divisors (2568931).

74498129 is a wasteful number, since it uses less digits than its factorization.

74498129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568930.

The product of its digits is 145152, while the sum is 44.

The square root of 74498129 is about 8631.2298660156. The cubic root of 74498129 is about 420.7735724396.

The spelling of 74498129 in words is "seventy-four million, four hundred ninety-eight thousand, one hundred twenty-nine".