158385242 has 8 divisors (see below), whose sum is σ = 238784436. Its totient is φ = 78790432.

The previous prime is 158385233. The next prime is 158385287. The reversal of 158385242 is 242583851.

It can be written as a sum of positive squares in 2 ways, for example, as 139972561 + 18412681 = 11831^2 + 4291^2 .

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 = 158385196 and 158385205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200603 + ... + 201390.

Almost surely, 2^158385242 is an apocalyptic number.

158385242 is a deficient number, since it is larger than the sum of its proper divisors (80399194).

158385242 is a wasteful number, since it uses less digits than its factorization.

158385242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402192.

The product of its digits is 76800, while the sum is 38.

The square root of 158385242 is about 12585.1198643477. The cubic root of 158385242 is about 541.0510416592.

The spelling of 158385242 in words is "one hundred fifty-eight million, three hundred eighty-five thousand, two hundred forty-two".