159423897 has 16 divisors (see below), whose sum is σ = 218533248. Its totient is φ = 103340160.

The previous prime is 159423881. The next prime is 159423907. The reversal of 159423897 is 798324951.

It is not a de Polignac number, because 159423897 - 2⁴ = 159423881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159423857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10423 + ... + 20675.

It is an arithmetic number, because the mean of its divisors is an integer number (13658328).

Almost surely, 2^159423897 is an apocalyptic number.

It is an amenable number.

159423897 is a deficient number, since it is larger than the sum of its proper divisors (59109351).

159423897 is a wasteful number, since it uses less digits than its factorization.

159423897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400.

The product of its digits is 544320, while the sum is 48.

The square root of 159423897 is about 12626.3176342115. The cubic root of 159423897 is about 542.2311629973.

The spelling of 159423897 in words is "one hundred fifty-nine million, four hundred twenty-three thousand, eight hundred ninety-seven".