158660043 has 4 divisors (see below), whose sum is σ = 211546728. Its totient is φ = 105773360.

The previous prime is 158660039. The next prime is 158660069. The reversal of 158660043 is 340066851.

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 158660043 - 2² = 158660039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158659986 and 158660013.

It is not an unprimeable number, because it can be changed into a prime (158660083) 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, 26443338 + ... + 26443343.

It is an arithmetic number, because the mean of its divisors is an integer number (52886682).

Almost surely, 2^158660043 is an apocalyptic number.

158660043 is a deficient number, since it is larger than the sum of its proper divisors (52886685).

158660043 is an equidigital number, since it uses as much as digits as its factorization.

158660043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52886684.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 158660043 is about 12596.0328278391. The cubic root of 158660043 is about 541.3637716838.

The spelling of 158660043 in words is "one hundred fifty-eight million, six hundred sixty thousand, forty-three".