159142725 has 120 divisors (see below), whose sum is σ = 343291520. Its totient is φ = 71383680.

The previous prime is 159142723. The next prime is 159142757. The reversal of 159142725 is 527241951.

159142725 is a `hidden beast` number, since 1 + 591 + 42 + 7 + 25 = 666.

159142725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 159142725 - 2¹ = 159142723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159142725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159142721) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1459971 + ... + 1460079.

Almost surely, 2^159142725 is an apocalyptic number.

159142725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159142725 is an abundant number, since it is smaller than the sum of its proper divisors (184148795).

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

159142725 is a wasteful number, since it uses less digits than its factorization.

159142725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 227 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 159142725 is about 12615.1783578355. The cubic root of 159142725 is about 541.9122021608.

It can be divided in two parts, 159 and 142725, that added together give a square (142884 = 378²).

The spelling of 159142725 in words is "one hundred fifty-nine million, one hundred forty-two thousand, seven hundred twenty-five".