159829994 has 4 divisors (see below), whose sum is σ = 239744994. Its totient is φ = 79914996.

The previous prime is 159829993. The next prime is 159830003. The reversal of 159829994 is 499928951.

159829994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499928951 = 4001 ⋅124951.

It can be written as a sum of positive squares in only one way, i.e., 154132225 + 5697769 = 12415^2 + 2387^2 .

It is not an unprimeable number, because it can be changed into a prime (159829993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39957497 + ... + 39957500.

Almost surely, 2^159829994 is an apocalyptic number.

159829994 is a deficient number, since it is larger than the sum of its proper divisors (79915000).

159829994 is an equidigital number, since it uses as much as digits as its factorization.

159829994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79914999.

The product of its digits is 2099520, while the sum is 56.

The square root of 159829994 is about 12642.3887774423. The cubic root of 159829994 is about 542.6911771440.

The spelling of 159829994 in words is "one hundred fifty-nine million, eight hundred twenty-nine thousand, nine hundred ninety-four".