71822159 has 2 divisors, whose sum is σ = 71822160. Its totient is φ = 71822158.

The previous prime is 71822137. The next prime is 71822197. The reversal of 71822159 is 95122817.

It is a weak prime.

It is an emirp because it is prime and its reverse (95122817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71822159 - 2⁸ = 71821903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71822659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35911079 + 35911080.

It is an arithmetic number, because the mean of its divisors is an integer number (35911080).

Almost surely, 2^71822159 is an apocalyptic number.

71822159 is a deficient number, since it is larger than the sum of its proper divisors (1).

71822159 is an equidigital number, since it uses as much as digits as its factorization.

71822159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 71822159 is about 8474.7955137572. The cubic root of 71822159 is about 415.6739598155.

The spelling of 71822159 in words is "seventy-one million, eight hundred twenty-two thousand, one hundred fifty-nine".