74584129 has 2 divisors, whose sum is σ = 74584130. Its totient is φ = 74584128.

The previous prime is 74584123. The next prime is 74584141. The reversal of 74584129 is 92148547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70174129 + 4410000 = 8377^2 + 2100^2 .

It is a cyclic number.

It is not a de Polignac number, because 74584129 - 2⁷ = 74584001 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 74584091 and 74584100.

It is not a weakly prime, because it can be changed into another prime (74584123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37292064 + 37292065.

It is an arithmetic number, because the mean of its divisors is an integer number (37292065).

Almost surely, 2^74584129 is an apocalyptic number.

It is an amenable number.

74584129 is a deficient number, since it is larger than the sum of its proper divisors (1).

74584129 is an equidigital number, since it uses as much as digits as its factorization.

74584129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 74584129 is about 8636.2103378739. The cubic root of 74584129 is about 420.9354226416.

The spelling of 74584129 in words is "seventy-four million, five hundred eighty-four thousand, one hundred twenty-nine".