159472139 has 2 divisors, whose sum is σ = 159472140. Its totient is φ = 159472138.

The previous prime is 159472099. The next prime is 159472147. The reversal of 159472139 is 931274951.

159472139 is nontrivially palindromic in base 15.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159472139 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 159472096 and 159472105.

It is not a weakly prime, because it can be changed into another prime (159472169) 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 as a sum of consecutive naturals, namely, 79736069 + 79736070.

It is an arithmetic number, because the mean of its divisors is an integer number (79736070).

Almost surely, 2^159472139 is an apocalyptic number.

159472139 is a deficient number, since it is larger than the sum of its proper divisors (1).

159472139 is an equidigital number, since it uses as much as digits as its factorization.

159472139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 41.

The square root of 159472139 is about 12628.2278645897. The cubic root of 159472139 is about 542.2858509041.

The spelling of 159472139 in words is "one hundred fifty-nine million, four hundred seventy-two thousand, one hundred thirty-nine".