158342194 has 8 divisors (see below), whose sum is σ = 241539120. Its totient is φ = 77829156.

The previous prime is 158342167. The next prime is 158342213. The reversal of 158342194 is 491243851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670824 + ... + 671059.

It is an arithmetic number, because the mean of its divisors is an integer number (30192390).

Almost surely, 2^158342194 is an apocalyptic number.

158342194 is a deficient number, since it is larger than the sum of its proper divisors (83196926).

158342194 is a wasteful number, since it uses less digits than its factorization.

158342194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341944.

The product of its digits is 34560, while the sum is 37.

The square root of 158342194 is about 12583.4094743833. The cubic root of 158342194 is about 541.0020192558.

The spelling of 158342194 in words is "one hundred fifty-eight million, three hundred forty-two thousand, one hundred ninety-four".