74133539 has 2 divisors, whose sum is σ = 74133540. Its totient is φ = 74133538.

The previous prime is 74133509. The next prime is 74133547. The reversal of 74133539 is 93533147.

It is a strong prime.

It is an emirp because it is prime and its reverse (93533147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74133539 - 2¹⁶ = 74068003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74133499 and 74133508.

It is not a weakly prime, because it can be changed into another prime (74133509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37066769 + 37066770.

It is an arithmetic number, because the mean of its divisors is an integer number (37066770).

Almost surely, 2^74133539 is an apocalyptic number.

74133539 is a deficient number, since it is larger than the sum of its proper divisors (1).

74133539 is an equidigital number, since it uses as much as digits as its factorization.

74133539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 35.

The square root of 74133539 is about 8610.0835652158. The cubic root of 74133539 is about 420.0860349071.

The spelling of 74133539 in words is "seventy-four million, one hundred thirty-three thousand, five hundred thirty-nine".