78601159 has 8 divisors (see below), whose sum is σ = 96740000. Its totient is φ = 62189856.

The previous prime is 78601153. The next prime is 78601199. The reversal of 78601159 is 95110687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78601159 - 2⁷ = 78601031 is a prime.

It is a super-2 number, since 2×78601159² = 12356284392286562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78601153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431784 + ... + 431965.

It is an arithmetic number, because the mean of its divisors is an integer number (12092500).

Almost surely, 2^78601159 is an apocalyptic number.

78601159 is a deficient number, since it is larger than the sum of its proper divisors (18138841).

78601159 is a wasteful number, since it uses less digits than its factorization.

78601159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863769.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 78601159 is about 8865.7294680133. The cubic root of 78601159 is about 428.3607299603.

The spelling of 78601159 in words is "seventy-eight million, six hundred one thousand, one hundred fifty-nine".