159213840 has 80 divisors (see below), whose sum is σ = 522609408. Its totient is φ = 39958528.

The previous prime is 159213811. The next prime is 159213841. The reversal of 159213840 is 48312951.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (159213841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15432 + ... + 23591.

Almost surely, 2^159213840 is an apocalyptic number.

159213840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159213840 is an abundant number, since it is smaller than the sum of its proper divisors (363395568).

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

159213840 is a wasteful number, since it uses less digits than its factorization.

159213840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39056 (or 39050 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 159213840 is about 12617.9966714213. The cubic root of 159213840 is about 541.9929103161.

The spelling of 159213840 in words is "one hundred fifty-nine million, two hundred thirteen thousand, eight hundred forty".