158432146 has 16 divisors (see below), whose sum is σ = 264872160. Its totient is φ = 70632000.

The previous prime is 158432117. The next prime is 158432177. The reversal of 158432146 is 641234851.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121980 + ... + 123271.

It is an arithmetic number, because the mean of its divisors is an integer number (16554510).

Almost surely, 2^158432146 is an apocalyptic number.

158432146 is a deficient number, since it is larger than the sum of its proper divisors (106440014).

158432146 is a wasteful number, since it uses less digits than its factorization.

158432146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245289.

The product of its digits is 23040, while the sum is 34.

The square root of 158432146 is about 12586.9831969380. The cubic root of 158432146 is about 541.1044451057.

Adding to 158432146 its reverse (641234851), we get a palindrome (799666997).

The spelling of 158432146 in words is "one hundred fifty-eight million, four hundred thirty-two thousand, one hundred forty-six".