71124047 has 2 divisors, whose sum is σ = 71124048. Its totient is φ = 71124046.

The previous prime is 71124029. The next prime is 71124103. The reversal of 71124047 is 74042117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71124047 - 2⁸ = 71123791 is a 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 (71124017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35562023 + 35562024.

It is an arithmetic number, because the mean of its divisors is an integer number (35562024).

Almost surely, 2^71124047 is an apocalyptic number.

71124047 is a deficient number, since it is larger than the sum of its proper divisors (1).

71124047 is an equidigital number, since it uses as much as digits as its factorization.

71124047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 71124047 is about 8433.5073960956. The cubic root of 71124047 is about 414.3227876964.

The spelling of 71124047 in words is "seventy-one million, one hundred twenty-four thousand, forty-seven".