159722347 has 4 divisors (see below), whose sum is σ = 163618056. Its totient is φ = 155826640.

The previous prime is 159722333. The next prime is 159722351. The reversal of 159722347 is 743227951.

159722347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743227951 = 41 ⋅18127511.

It is a cyclic number.

It is not a de Polignac number, because 159722347 - 2⁷ = 159722219 is a prime.

It is a super-2 number, since 2×159722347² = 51022456262376818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159725347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947793 + ... + 1947874.

It is an arithmetic number, because the mean of its divisors is an integer number (40904514).

Almost surely, 2^159722347 is an apocalyptic number.

159722347 is a deficient number, since it is larger than the sum of its proper divisors (3895709).

159722347 is an equidigital number, since it uses as much as digits as its factorization.

159722347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895708.

The product of its digits is 105840, while the sum is 40.

The square root of 159722347 is about 12638.1306766468. The cubic root of 159722347 is about 542.5693139153.

The spelling of 159722347 in words is "one hundred fifty-nine million, seven hundred twenty-two thousand, three hundred forty-seven".