159492139 has 4 divisors (see below), whose sum is σ = 159685360. Its totient is φ = 159298920.

The previous prime is 159492127. The next prime is 159492169. The reversal of 159492139 is 931294951.

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 159492139 - 2⁹ = 159491627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159492095 and 159492104.

It is not an unprimeable number, because it can be changed into a prime (159492169) 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, 95367 + ... + 97024.

It is an arithmetic number, because the mean of its divisors is an integer number (39921340).

Almost surely, 2^159492139 is an apocalyptic number.

159492139 is a deficient number, since it is larger than the sum of its proper divisors (193221).

159492139 is an equidigital number, since it uses as much as digits as its factorization.

159492139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193220.

The product of its digits is 87480, while the sum is 43.

The square root of 159492139 is about 12629.0197165101. The cubic root of 159492139 is about 542.3085199917.

The spelling of 159492139 in words is "one hundred fifty-nine million, four hundred ninety-two thousand, one hundred thirty-nine".