159722045 has 8 divisors (see below), whose sum is σ = 219047424. Its totient is φ = 109523664.

The previous prime is 159722039. The next prime is 159722063. The reversal of 159722045 is 540227951.

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 159722045 - 2¹² = 159717949 is a prime.

It is a super-2 number, since 2×159722045² = 51022263317964050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 4563487 = 159722045 / (1 + 5 + 9 + 7 + 2 + 2 + 0 + 4 + 5).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159721996 and 159722014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281709 + ... + 2281778.

It is an arithmetic number, because the mean of its divisors is an integer number (27380928).

Almost surely, 2^159722045 is an apocalyptic number.

It is an amenable number.

159722045 is a deficient number, since it is larger than the sum of its proper divisors (59325379).

159722045 is an equidigital number, since it uses as much as digits as its factorization.

159722045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563499.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 159722045 is about 12638.1187286716. The cubic root of 159722045 is about 542.5689719552.

Adding to 159722045 its reverse (540227951), we get a palindrome (699949996).

The spelling of 159722045 in words is "one hundred fifty-nine million, seven hundred twenty-two thousand, forty-five".