74213543 has 2 divisors, whose sum is σ = 74213544. Its totient is φ = 74213542.

The previous prime is 74213539. The next prime is 74213561. The reversal of 74213543 is 34531247.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74213543 - 2² = 74213539 is a prime.

It is a super-2 number, since 2×74213543² = 11015299929225698, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_4350971 and since 74213543 and 4350971 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74213533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37106771 + 37106772.

It is an arithmetic number, because the mean of its divisors is an integer number (37106772).

Almost surely, 2^74213543 is an apocalyptic number.

74213543 is a deficient number, since it is larger than the sum of its proper divisors (1).

74213543 is an equidigital number, since it uses as much as digits as its factorization.

74213543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 74213543 is about 8614.7282603690. The cubic root of 74213543 is about 420.2370977991.

The spelling of 74213543 in words is "seventy-four million, two hundred thirteen thousand, five hundred forty-three".