71051873 has 2 divisors, whose sum is σ = 71051874. Its totient is φ = 71051872.

The previous prime is 71051843. The next prime is 71051879. The reversal of 71051873 is 37815017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60109009 + 10942864 = 7753^2 + 3308^2 .

It is a cyclic number.

It is not a de Polignac number, because 71051873 - 2²⁴ = 54274657 is a prime.

It is not a weakly prime, because it can be changed into another prime (71051879) 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, 35525936 + 35525937.

It is an arithmetic number, because the mean of its divisors is an integer number (35525937).

Almost surely, 2^71051873 is an apocalyptic number.

It is an amenable number.

71051873 is a deficient number, since it is larger than the sum of its proper divisors (1).

71051873 is an equidigital number, since it uses as much as digits as its factorization.

71051873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 71051873 is about 8429.2273074108. The cubic root of 71051873 is about 414.1825938859.

The spelling of 71051873 in words is "seventy-one million, fifty-one thousand, eight hundred seventy-three".