139891159 has 4 divisors (see below), whose sum is σ = 139921600. Its totient is φ = 139860720.

The previous prime is 139891151. The next prime is 139891187. The reversal of 139891159 is 951198931.

139891159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 139891159 - 2³ = 139891151 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 (139891151) 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, 6759 + ... + 18040.

It is an arithmetic number, because the mean of its divisors is an integer number (34980400).

Almost surely, 2^139891159 is an apocalyptic number.

139891159 is a deficient number, since it is larger than the sum of its proper divisors (30441).

139891159 is an equidigital number, since it uses as much as digits as its factorization.

139891159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30440.

The product of its digits is 87480, while the sum is 46.

The square root of 139891159 is about 11827.5593002107. The cubic root of 139891159 is about 519.1148142872.

The spelling of 139891159 in words is "one hundred thirty-nine million, eight hundred ninety-one thousand, one hundred fifty-nine".