83972159 has 2 divisors, whose sum is σ = 83972160. Its totient is φ = 83972158.

The previous prime is 83972143. The next prime is 83972167. The reversal of 83972159 is 95127938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83972159 - 2⁴ = 83972143 is a prime.

It is a Sophie Germain prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83978159) 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, 41986079 + 41986080.

It is an arithmetic number, because the mean of its divisors is an integer number (41986080).

Almost surely, 2^83972159 is an apocalyptic number.

83972159 is a deficient number, since it is larger than the sum of its proper divisors (1).

83972159 is an equidigital number, since it uses as much as digits as its factorization.

83972159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The square root of 83972159 is about 9163.6324129681. The cubic root of 83972159 is about 437.9035236452.

The spelling of 83972159 in words is "eighty-three million, nine hundred seventy-two thousand, one hundred fifty-nine".