74523133 has 2 divisors, whose sum is σ = 74523134. Its totient is φ = 74523132.

The previous prime is 74523107. The next prime is 74523139. The reversal of 74523133 is 33132547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73925604 + 597529 = 8598^2 + 773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74523133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74523139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37261566 + 37261567.

It is an arithmetic number, because the mean of its divisors is an integer number (37261567).

Almost surely, 2^74523133 is an apocalyptic number.

It is an amenable number.

74523133 is a deficient number, since it is larger than the sum of its proper divisors (1).

74523133 is an equidigital number, since it uses as much as digits as its factorization.

74523133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 28.

The square root of 74523133 is about 8632.6782055165. The cubic root of 74523133 is about 420.8206422819.

It can be divided in two parts, 7452 and 3133, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 74523133 in words is "seventy-four million, five hundred twenty-three thousand, one hundred thirty-three".