74272111 has 2 divisors, whose sum is σ = 74272112. Its totient is φ = 74272110.

The previous prime is 74272109. The next prime is 74272117. The reversal of 74272111 is 11127247.

It is a weak prime.

It is an emirp because it is prime and its reverse (11127247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74272111 - 2¹ = 74272109 is a prime.

Together with 74272109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74272117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37136055 + 37136056.

It is an arithmetic number, because the mean of its divisors is an integer number (37136056).

Almost surely, 2^74272111 is an apocalyptic number.

74272111 is a deficient number, since it is larger than the sum of its proper divisors (1).

74272111 is an equidigital number, since it uses as much as digits as its factorization.

74272111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 784, while the sum is 25.

The square root of 74272111 is about 8618.1268846542. The cubic root of 74272111 is about 420.3476165967.

Adding to 74272111 its reverse (11127247), we get a palindrome (85399358).

The spelling of 74272111 in words is "seventy-four million, two hundred seventy-two thousand, one hundred eleven".