159787154 has 4 divisors (see below), whose sum is σ = 239680734. Its totient is φ = 79893576.

The previous prime is 159787109. The next prime is 159787171. The reversal of 159787154 is 451787951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112933129 + 46854025 = 10627^2 + 6845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 159787099 and 159787108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39946787 + ... + 39946790.

Almost surely, 2^159787154 is an apocalyptic number.

159787154 is a deficient number, since it is larger than the sum of its proper divisors (79893580).

159787154 is an equidigital number, since it uses as much as digits as its factorization.

159787154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79893579.

The product of its digits is 352800, while the sum is 47.

The square root of 159787154 is about 12640.6943638394. The cubic root of 159787154 is about 542.6426861048.

It can be divided in two parts, 15978 and 7154, that added together give a palindrome (23132).

The spelling of 159787154 in words is "one hundred fifty-nine million, seven hundred eighty-seven thousand, one hundred fifty-four".