159649441 has 8 divisors (see below), whose sum is σ = 184766720. Its totient is φ = 135109728.

The previous prime is 159649439. The next prime is 159649453. The reversal of 159649441 is 144946951.

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 159649441 - 2¹ = 159649439 is a prime.

It is a super-2 number, since 2×159649441² = 50975888023224962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159640441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143796 + ... + 144901.

It is an arithmetic number, because the mean of its divisors is an integer number (23095840).

Almost surely, 2^159649441 is an apocalyptic number.

It is an amenable number.

159649441 is a deficient number, since it is larger than the sum of its proper divisors (25117279).

159649441 is an equidigital number, since it uses as much as digits as its factorization.

159649441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288783.

The product of its digits is 155520, while the sum is 43.

The square root of 159649441 is about 12635.2459809851. The cubic root of 159649441 is about 542.4867485986.

The spelling of 159649441 in words is "one hundred fifty-nine million, six hundred forty-nine thousand, four hundred forty-one".