78052159 has 2 divisors, whose sum is σ = 78052160. Its totient is φ = 78052158.

The previous prime is 78052157. The next prime is 78052187. The reversal of 78052159 is 95125087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78052159 - 2¹ = 78052157 is a prime.

It is a super-2 number, since 2×78052159² = 12184279049122562, which contains 22 as substring.

Together with 78052157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78052157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39026079 + 39026080.

It is an arithmetic number, because the mean of its divisors is an integer number (39026080).

Almost surely, 2^78052159 is an apocalyptic number.

78052159 is a deficient number, since it is larger than the sum of its proper divisors (1).

78052159 is an equidigital number, since it uses as much as digits as its factorization.

78052159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 78052159 is about 8834.7132947255. The cubic root of 78052159 is about 427.3610852413.

The spelling of 78052159 in words is "seventy-eight million, fifty-two thousand, one hundred fifty-nine".