71264111 has 2 divisors, whose sum is σ = 71264112. Its totient is φ = 71264110.

The previous prime is 71264101. The next prime is 71264161. The reversal of 71264111 is 11146217.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71264111 - 2⁶ = 71264047 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71264101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35632055 + 35632056.

It is an arithmetic number, because the mean of its divisors is an integer number (35632056).

Almost surely, 2^71264111 is an apocalyptic number.

71264111 is a deficient number, since it is larger than the sum of its proper divisors (1).

71264111 is an equidigital number, since it uses as much as digits as its factorization.

71264111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 23.

The square root of 71264111 is about 8441.8073301871. The cubic root of 71264111 is about 414.5945835105.

The spelling of 71264111 in words is "seventy-one million, two hundred sixty-four thousand, one hundred eleven".