74543153 has 2 divisors, whose sum is σ = 74543154. Its totient is φ = 74543152.

The previous prime is 74543149. The next prime is 74543171. The reversal of 74543153 is 35134547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49463089 + 25080064 = 7033^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 74543153 - 2² = 74543149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (74543143) 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, 37271576 + 37271577.

It is an arithmetic number, because the mean of its divisors is an integer number (37271577).

Almost surely, 2^74543153 is an apocalyptic number.

It is an amenable number.

74543153 is a deficient number, since it is larger than the sum of its proper divisors (1).

74543153 is an equidigital number, since it uses as much as digits as its factorization.

74543153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 32.

The square root of 74543153 is about 8633.8376751014. The cubic root of 74543153 is about 420.8583221925.

The spelling of 74543153 in words is "seventy-four million, five hundred forty-three thousand, one hundred fifty-three".