159671240 has 32 divisors (see below), whose sum is σ = 359717760. Its totient is φ = 63787200.

The previous prime is 159671233. The next prime is 159671249. The reversal of 159671240 is 42176951.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 159671240.

It is not an unprimeable number, because it can be changed into a prime (159671249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36785 + ... + 40895.

It is an arithmetic number, because the mean of its divisors is an integer number (11241180).

Almost surely, 2^159671240 is an apocalyptic number.

159671240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159671240 is an abundant number, since it is smaller than the sum of its proper divisors (200046520).

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

159671240 is a wasteful number, since it uses less digits than its factorization.

159671240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093 (or 5089 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 159671240 is about 12636.1085781976. The cubic root of 159671240 is about 542.5114383821.

The spelling of 159671240 in words is "one hundred fifty-nine million, six hundred seventy-one thousand, two hundred forty".