159492261 has 4 divisors (see below), whose sum is σ = 212656352. Its totient is φ = 106328172.

The previous prime is 159492253. The next prime is 159492271. The reversal of 159492261 is 162294951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 159492261 - 2³ = 159492253 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 (159492271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26582041 + ... + 26582046.

It is an arithmetic number, because the mean of its divisors is an integer number (53164088).

Almost surely, 2^159492261 is an apocalyptic number.

It is an amenable number.

159492261 is a deficient number, since it is larger than the sum of its proper divisors (53164091).

159492261 is an equidigital number, since it uses as much as digits as its factorization.

159492261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53164090.

The product of its digits is 38880, while the sum is 39.

The square root of 159492261 is about 12629.0245466544. The cubic root of 159492261 is about 542.3086582673.

The spelling of 159492261 in words is "one hundred fifty-nine million, four hundred ninety-two thousand, two hundred sixty-one".