159897707 has 2 divisors, whose sum is σ = 159897708. Its totient is φ = 159897706.

The previous prime is 159897649. The next prime is 159897709. The reversal of 159897707 is 707798951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159897707 - 2⁶ = 159897643 is a prime.

Together with 159897709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (159897709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79948853 + 79948854.

It is an arithmetic number, because the mean of its divisors is an integer number (79948854).

Almost surely, 2^159897707 is an apocalyptic number.

159897707 is a deficient number, since it is larger than the sum of its proper divisors (1).

159897707 is an equidigital number, since it uses as much as digits as its factorization.

159897707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 53.

The square root of 159897707 is about 12645.0665083265. The cubic root of 159897707 is about 542.7678045207.

The spelling of 159897707 in words is "one hundred fifty-nine million, eight hundred ninety-seven thousand, seven hundred seven".