158200018 has 8 divisors (see below), whose sum is σ = 241777548. Its totient is φ = 77607504.

The previous prime is 158200013. The next prime is 158200019. The reversal of 158200018 is 810002851.

It can be written as a sum of positive squares in 2 ways, for example, as 154330929 + 3869089 = 12423^2 + 1967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 158199965 and 158200001.

It is not an unprimeable number, because it can be changed into a prime (158200013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746121 + ... + 746332.

Almost surely, 2^158200018 is an apocalyptic number.

158200018 is a deficient number, since it is larger than the sum of its proper divisors (83577530).

158200018 is a wasteful number, since it uses less digits than its factorization.

158200018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492508.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 158200018 is about 12577.7588623729. The cubic root of 158200018 is about 540.8400482440.

Adding to 158200018 its reverse (810002851), we get a palindrome (968202869).

The spelling of 158200018 in words is "one hundred fifty-eight million, two hundred thousand, eighteen".