159436040 has 32 divisors (see below), whose sum is σ = 360569880. Its totient is φ = 63447552.

The previous prime is 159436037. The next prime is 159436051. The reversal of 159436040 is 40634951.

It can be written as a sum of positive squares in 4 ways, for example, as 156700324 + 2735716 = 12518^2 + 1654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 159435988 and 159436006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2237 + ... + 17996.

Almost surely, 2^159436040 is an apocalyptic number.

159436040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159436040 is an abundant number, since it is smaller than the sum of its proper divisors (201133840).

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

159436040 is a wasteful number, since it uses less digits than its factorization.

159436040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20441 (or 20437 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 159436040 is about 12626.7984857604. The cubic root of 159436040 is about 542.2449295362.

The spelling of 159436040 in words is "one hundred fifty-nine million, four hundred thirty-six thousand, forty".