74356129 has 3 divisors (see below), whose sum is σ = 74364753. Its totient is φ = 74347506.

The previous prime is 74356127. The next prime is 74356141. The reversal of 74356129 is 92165347.

The square root of 74356129 is 8623.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 74356129 - 2¹ = 74356127 is a prime.

It is a super-3 number, since 3×74356129³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74356123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4312 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (24788251).

Almost surely, 2^74356129 is an apocalyptic number.

74356129 is the 8623-rd square number.

74356129 is the 4312-nd centered octagonal number.

It is an amenable number.

74356129 is a deficient number, since it is larger than the sum of its proper divisors (8624).

74356129 is an frugal number, since it uses more digits than its factorization.

74356129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17246 (or 8623 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The cubic root of 74356129 is about 420.5060585608.

It can be divided in two parts, 743561 and 29, that added together give a triangular number (743590 = T₁₂₁₉).

The spelling of 74356129 in words is "seventy-four million, three hundred fifty-six thousand, one hundred twenty-nine".