158229642 has 64 divisors (see below), whose sum is σ = 349138944. Its totient is φ = 47589120.

The previous prime is 158229613. The next prime is 158229671. The reversal of 158229642 is 246922851.

It is an interprime number because it is at equal distance from previous prime (158229613) and next prime (158229671).

It is a self number, because there is not a number n which added to its sum of digits gives 158229642.

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 31 ways as a sum of consecutive naturals, for example, 515253 + ... + 515559.

It is an arithmetic number, because the mean of its divisors is an integer number (5455296).

Almost surely, 2^158229642 is an apocalyptic number.

158229642 is an abundant number, since it is smaller than the sum of its proper divisors (190909302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158229642 is a wasteful number, since it uses less digits than its factorization.

158229642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523.

The product of its digits is 69120, while the sum is 39.

The square root of 158229642 is about 12578.9364415280. The cubic root of 158229642 is about 540.8738047628.

The spelling of 158229642 in words is "one hundred fifty-eight million, two hundred twenty-nine thousand, six hundred forty-two".