139915159 has 2 divisors, whose sum is σ = 139915160. Its totient is φ = 139915158.

The previous prime is 139915133. The next prime is 139915189. The reversal of 139915159 is 951519931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139915159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139915129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69957579 + 69957580.

It is an arithmetic number, because the mean of its divisors is an integer number (69957580).

Almost surely, 2^139915159 is an apocalyptic number.

139915159 is a deficient number, since it is larger than the sum of its proper divisors (1).

139915159 is an equidigital number, since it uses as much as digits as its factorization.

139915159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54675, while the sum is 43.

The square root of 139915159 is about 11828.5738362661. The cubic root of 139915159 is about 519.1444993729.

The spelling of 139915159 in words is "one hundred thirty-nine million, nine hundred fifteen thousand, one hundred fifty-nine".