158136673 has 8 divisors (see below), whose sum is σ = 164089856. Its totient is φ = 152236800.

The previous prime is 158136653. The next prime is 158136679. The reversal of 158136673 is 376631851.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 158136673 - 2⁹ = 158136161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158136679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7233 + ... + 19198.

It is an arithmetic number, because the mean of its divisors is an integer number (20511232).

Almost surely, 2^158136673 is an apocalyptic number.

It is an amenable number.

158136673 is a deficient number, since it is larger than the sum of its proper divisors (5953183).

158136673 is a wasteful number, since it uses less digits than its factorization.

158136673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26655.

The product of its digits is 90720, while the sum is 40.

The square root of 158136673 is about 12575.2404748378. The cubic root of 158136673 is about 540.7678525369.

The spelling of 158136673 in words is "one hundred fifty-eight million, one hundred thirty-six thousand, six hundred seventy-three".