71254811 has 2 divisors, whose sum is σ = 71254812. Its totient is φ = 71254810.

The previous prime is 71254787. The next prime is 71254817. The reversal of 71254811 is 11845217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71254811 - 2²² = 67060507 is a prime.

It is not a weakly prime, because it can be changed into another prime (71254817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35627405 + 35627406.

It is an arithmetic number, because the mean of its divisors is an integer number (35627406).

Almost surely, 2^71254811 is an apocalyptic number.

71254811 is a deficient number, since it is larger than the sum of its proper divisors (1).

71254811 is an equidigital number, since it uses as much as digits as its factorization.

71254811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 29.

The square root of 71254811 is about 8441.2564823017. The cubic root of 71254811 is about 414.5765477965.

The spelling of 71254811 in words is "seventy-one million, two hundred fifty-four thousand, eight hundred eleven".