159909912 has 24 divisors (see below), whose sum is σ = 433089540. Its totient is φ = 53303280.

The previous prime is 159909899. The next prime is 159909917. The reversal of 159909912 is 219909951.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159909917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1110414 + ... + 1110557.

Almost surely, 2^159909912 is an apocalyptic number.

159909912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159909912 is an abundant number, since it is smaller than the sum of its proper divisors (273179628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159909912 is a wasteful number, since it uses less digits than its factorization.

159909912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220983 (or 2220976 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 45.

The square root of 159909912 is about 12645.5490983982. The cubic root of 159909912 is about 542.7816140006.

The spelling of 159909912 in words is "one hundred fifty-nine million, nine hundred nine thousand, nine hundred twelve".