71319041 has 2 divisors, whose sum is σ = 71319042. Its totient is φ = 71319040.

The previous prime is 71319007. The next prime is 71319043. The reversal of 71319041 is 14091317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64963600 + 6355441 = 8060^2 + 2521^2 .

It is a cyclic number.

It is not a de Polignac number, because 71319041 - 2¹⁰ = 71318017 is a prime.

Together with 71319043, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71319041.

It is not a weakly prime, because it can be changed into another prime (71319043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35659520 + 35659521.

It is an arithmetic number, because the mean of its divisors is an integer number (35659521).

Almost surely, 2^71319041 is an apocalyptic number.

It is an amenable number.

71319041 is a deficient number, since it is larger than the sum of its proper divisors (1).

71319041 is an equidigital number, since it uses as much as digits as its factorization.

71319041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 71319041 is about 8445.0601537230. The cubic root of 71319041 is about 414.7010785909.

The spelling of 71319041 in words is "seventy-one million, three hundred nineteen thousand, forty-one".