74381311 has 2 divisors, whose sum is σ = 74381312. Its totient is φ = 74381310.

The previous prime is 74381309. The next prime is 74381353. The reversal of 74381311 is 11318347.

It is a weak prime.

It is an emirp because it is prime and its reverse (11318347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74381311 - 2¹ = 74381309 is a prime.

Together with 74381309, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 74381311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74381381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37190655 + 37190656.

It is an arithmetic number, because the mean of its divisors is an integer number (37190656).

Almost surely, 2^74381311 is an apocalyptic number.

74381311 is a deficient number, since it is larger than the sum of its proper divisors (1).

74381311 is an equidigital number, since it uses as much as digits as its factorization.

74381311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 74381311 is about 8624.4600410692. The cubic root of 74381311 is about 420.5535237733.

Adding to 74381311 its reverse (11318347), we get a palindrome (85699658).

The spelling of 74381311 in words is "seventy-four million, three hundred eighty-one thousand, three hundred eleven".