74144761 has 2 divisors, whose sum is σ = 74144762. Its totient is φ = 74144760.

The previous prime is 74144753. The next prime is 74144773. The reversal of 74144761 is 16744147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59969536 + 14175225 = 7744^2 + 3765^2 .

It is a cyclic number.

It is not a de Polignac number, because 74144761 - 2³ = 74144753 is a prime.

It is not a weakly prime, because it can be changed into another prime (74144711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37072380 + 37072381.

It is an arithmetic number, because the mean of its divisors is an integer number (37072381).

Almost surely, 2^74144761 is an apocalyptic number.

It is an amenable number.

74144761 is a deficient number, since it is larger than the sum of its proper divisors (1).

74144761 is an equidigital number, since it uses as much as digits as its factorization.

74144761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 74144761 is about 8610.7352183190. The cubic root of 74144761 is about 420.1072307459.

The spelling of 74144761 in words is "seventy-four million, one hundred forty-four thousand, seven hundred sixty-one".