158536238 has 8 divisors (see below), whose sum is σ = 271776432. Its totient is φ = 67944096.

The previous prime is 158536219. The next prime is 158536283. The reversal of 158536238 is 832635851.

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 = 158536195 and 158536204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5661995 + ... + 5662022.

It is an arithmetic number, because the mean of its divisors is an integer number (33972054).

Almost surely, 2^158536238 is an apocalyptic number.

158536238 is a deficient number, since it is larger than the sum of its proper divisors (113240194).

158536238 is a wasteful number, since it uses less digits than its factorization.

158536238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324026.

The product of its digits is 172800, while the sum is 41.

The square root of 158536238 is about 12591.1174245974. The cubic root of 158536238 is about 541.2229234037. Note that the first 3 decimals are identical.

The spelling of 158536238 in words is "one hundred fifty-eight million, five hundred thirty-six thousand, two hundred thirty-eight".