159049447 has 4 divisors (see below), whose sum is σ = 160624296. Its totient is φ = 157474600.

The previous prime is 159049409. The next prime is 159049463. The reversal of 159049447 is 744940951.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 159049447 - 2¹⁵ = 159016679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159049477) 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, 787273 + ... + 787474.

It is an arithmetic number, because the mean of its divisors is an integer number (40156074).

Almost surely, 2^159049447 is an apocalyptic number.

159049447 is a deficient number, since it is larger than the sum of its proper divisors (1574849).

159049447 is a wasteful number, since it uses less digits than its factorization.

159049447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574848.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 159049447 is about 12611.4807615918. The cubic root of 159049447 is about 541.8063048380.

The spelling of 159049447 in words is "one hundred fifty-nine million, forty-nine thousand, four hundred forty-seven".