159099840 has 84 divisors (see below), whose sum is σ = 547247064. Its totient is φ = 42425856.

The previous prime is 159099839. The next prime is 159099907. The reversal of 159099840 is 48990951.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24742 + ... + 30501.

It is an arithmetic number, because the mean of its divisors is an integer number (6514846).

Almost surely, 2^159099840 is an apocalyptic number.

159099840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159099840 is an abundant number, since it is smaller than the sum of its proper divisors (388147224).

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

159099840 is a wasteful number, since it uses less digits than its factorization.

159099840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55266 (or 55253 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 159099840 is about 12613.4785051547. The cubic root of 159099840 is about 541.8635205081.

The spelling of 159099840 in words is "one hundred fifty-nine million, ninety-nine thousand, eight hundred forty".