158442147 has 24 divisors (see below), whose sum is σ = 246524928. Its totient is φ = 97772400.

The previous prime is 158442139. The next prime is 158442157. The reversal of 158442147 is 741244851.

It is a happy number.

It is not a de Polignac number, because 158442147 - 2³ = 158442139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158442107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5929 + ... + 18762.

It is an arithmetic number, because the mean of its divisors is an integer number (10271872).

Almost surely, 2^158442147 is an apocalyptic number.

158442147 is a deficient number, since it is larger than the sum of its proper divisors (88082781).

158442147 is a wasteful number, since it uses less digits than its factorization.

158442147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24751 (or 24748 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 158442147 is about 12587.3804661653. The cubic root of 158442147 is about 541.1158305722.

Adding to 158442147 its reverse (741244851), we get a palindrome (899686998).

The spelling of 158442147 in words is "one hundred fifty-eight million, four hundred forty-two thousand, one hundred forty-seven".