159461639 has 2 divisors, whose sum is σ = 159461640. Its totient is φ = 159461638.

The previous prime is 159461629. The next prime is 159461641. The reversal of 159461639 is 936164951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159461639 - 2⁸ = 159461383 is a prime.

It is a Sophie Germain prime.

Together with 159461641, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159461639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159461629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79730819 + 79730820.

It is an arithmetic number, because the mean of its divisors is an integer number (79730820).

Almost surely, 2^159461639 is an apocalyptic number.

159461639 is a deficient number, since it is larger than the sum of its proper divisors (1).

159461639 is an equidigital number, since it uses as much as digits as its factorization.

159461639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 159461639 is about 12627.8121224542. The cubic root of 159461639 is about 542.2739488744.

The spelling of 159461639 in words is "one hundred fifty-nine million, four hundred sixty-one thousand, six hundred thirty-nine".