159830397 has 12 divisors (see below), whose sum is σ = 238827420. Its totient is φ = 102879168.

The previous prime is 159830347. The next prime is 159830453. The reversal of 159830397 is 793038951.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121749156 + 38081241 = 11034^2 + 6171^2 .

It is not a de Polignac number, because 159830397 - 2¹² = 159826301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159830317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305928 + ... + 306449.

It is an arithmetic number, because the mean of its divisors is an integer number (19902285).

Almost surely, 2^159830397 is an apocalyptic number.

It is an amenable number.

159830397 is a deficient number, since it is larger than the sum of its proper divisors (78997023).

159830397 is a wasteful number, since it uses less digits than its factorization.

159830397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612412 (or 612409 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 159830397 is about 12642.4047158759. The cubic root of 159830397 is about 542.6916332627.

The spelling of 159830397 in words is "one hundred fifty-nine million, eight hundred thirty thousand, three hundred ninety-seven".