71074147 has 2 divisors, whose sum is σ = 71074148. Its totient is φ = 71074146.

The previous prime is 71074111. The next prime is 71074169. The reversal of 71074147 is 74147017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71074147 - 2⁷ = 71074019 is a prime.

It is not a weakly prime, because it can be changed into another prime (71074177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35537073 + 35537074.

It is an arithmetic number, because the mean of its divisors is an integer number (35537074).

Almost surely, 2^71074147 is an apocalyptic number.

71074147 is a deficient number, since it is larger than the sum of its proper divisors (1).

71074147 is an equidigital number, since it uses as much as digits as its factorization.

71074147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 71074147 is about 8430.5484400483. The cubic root of 71074147 is about 414.2258699640.

The spelling of 71074147 in words is "seventy-one million, seventy-four thousand, one hundred forty-seven".