74211143 has 8 divisors (see below), whose sum is σ = 76355568. Its totient is φ = 72097344.

The previous prime is 74211139. The next prime is 74211149. The reversal of 74211143 is 34111247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74211143 - 2² = 74211139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74211149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696 + ... + 12477.

It is an arithmetic number, because the mean of its divisors is an integer number (9544446).

Almost surely, 2^74211143 is an apocalyptic number.

74211143 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

74211143 is a deficient number, since it is larger than the sum of its proper divisors (2144425).

74211143 is a wasteful number, since it uses less digits than its factorization.

74211143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15313.

The product of its digits is 672, while the sum is 23.

The square root of 74211143 is about 8614.5889629163. The cubic root of 74211143 is about 420.2325677189.

The spelling of 74211143 in words is "seventy-four million, two hundred eleven thousand, one hundred forty-three".