158973211 has 4 divisors (see below), whose sum is σ = 159011424. Its totient is φ = 158935000.

The previous prime is 158973181. The next prime is 158973233. The reversal of 158973211 is 112379851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158973211 - 2⁷ = 158973083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158973271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11980 + ... + 21481.

It is an arithmetic number, because the mean of its divisors is an integer number (39752856).

Almost surely, 2^158973211 is an apocalyptic number.

158973211 is a deficient number, since it is larger than the sum of its proper divisors (38213).

158973211 is an equidigital number, since it uses as much as digits as its factorization.

158973211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38212.

The product of its digits is 15120, while the sum is 37.

The square root of 158973211 is about 12608.4579152250. The cubic root of 158973211 is about 541.7197243280.

The spelling of 158973211 in words is "one hundred fifty-eight million, nine hundred seventy-three thousand, two hundred eleven".