159964840 has 32 divisors (see below), whose sum is σ = 411338880. Its totient is φ = 54844992.

The previous prime is 159964837. The next prime is 159964843. The reversal of 159964840 is 48469951.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (159964837) and next prime (159964843).

It is not an unprimeable number, because it can be changed into a prime (159964843) 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 7 ways as a sum of consecutive naturals, for example, 285372 + ... + 285931.

It is an arithmetic number, because the mean of its divisors is an integer number (12854340).

Almost surely, 2^159964840 is an apocalyptic number.

159964840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159964840 is an abundant number, since it is smaller than the sum of its proper divisors (251374040).

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

159964840 is a wasteful number, since it uses less digits than its factorization.

159964840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571321 (or 571317 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 159964840 is about 12647.7207432802. The cubic root of 159964840 is about 542.8437541877.

The spelling of 159964840 in words is "one hundred fifty-nine million, nine hundred sixty-four thousand, eight hundred forty".