158081003 has 4 divisors (see below), whose sum is σ = 160307568. Its totient is φ = 155854440.

The previous prime is 158080987. The next prime is 158081009. The reversal of 158081003 is 300180851.

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 158081003 - 2⁴ = 158080987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158081009) 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, 1113176 + ... + 1113317.

It is an arithmetic number, because the mean of its divisors is an integer number (40076892).

Almost surely, 2^158081003 is an apocalyptic number.

158081003 is a deficient number, since it is larger than the sum of its proper divisors (2226565).

158081003 is an equidigital number, since it uses as much as digits as its factorization.

158081003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226564.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 158081003 is about 12573.0268034392. The cubic root of 158081003 is about 540.7043882793.

The spelling of 158081003 in words is "one hundred fifty-eight million, eighty-one thousand, three".