159719540 has 24 divisors (see below), whose sum is σ = 336608160. Its totient is φ = 63659808.

The previous prime is 159719531. The next prime is 159719543. The reversal of 159719540 is 45917951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159719543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8450 + ... + 19769.

It is an arithmetic number, because the mean of its divisors is an integer number (14025340).

Almost surely, 2^159719540 is an apocalyptic number.

159719540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159719540 is an abundant number, since it is smaller than the sum of its proper divisors (176888620).

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

159719540 is a wasteful number, since it uses less digits than its factorization.

159719540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28511 (or 28509 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 159719540 is about 12638.0196233429. The cubic root of 159719540 is about 542.5661354810.

The spelling of 159719540 in words is "one hundred fifty-nine million, seven hundred nineteen thousand, five hundred forty".