158342239 has 16 divisors (see below), whose sum is σ = 176432256. Its totient is φ = 140896800.

The previous prime is 158342231. The next prime is 158342243. The reversal of 158342239 is 932243851.

158342239 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 158342239 - 2³ = 158342231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158342198 and 158342207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158342231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132804 + ... + 133990.

It is an arithmetic number, because the mean of its divisors is an integer number (11027016).

Almost surely, 2^158342239 is an apocalyptic number.

158342239 is a deficient number, since it is larger than the sum of its proper divisors (18090017).

158342239 is a wasteful number, since it uses less digits than its factorization.

158342239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its digits is 51840, while the sum is 37.

The square root of 158342239 is about 12583.4112624518. The cubic root of 158342239 is about 541.0020705057.

The spelling of 158342239 in words is "one hundred fifty-eight million, three hundred forty-two thousand, two hundred thirty-nine".