159448191 has 16 divisors (see below), whose sum is σ = 244018944. Its totient is φ = 90719424.

The previous prime is 159448189. The next prime is 159448193. The reversal of 159448191 is 191844951.

It is an interprime number because it is at equal distance from previous prime (159448189) and next prime (159448193).

It is not a de Polignac number, because 159448191 - 2¹ = 159448189 is a prime.

It is a super-2 number, since 2×159448191² = 50847451226344962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159448193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11401 + ... + 21186.

It is an arithmetic number, because the mean of its divisors is an integer number (15251184).

Almost surely, 2^159448191 is an apocalyptic number.

159448191 is a deficient number, since it is larger than the sum of its proper divisors (84570753).

159448191 is a wasteful number, since it uses less digits than its factorization.

159448191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32830.

The product of its digits is 51840, while the sum is 42.

The square root of 159448191 is about 12627.2796357727. The cubic root of 159448191 is about 542.2587044450.

The spelling of 159448191 in words is "one hundred fifty-nine million, four hundred forty-eight thousand, one hundred ninety-one".