158142203 has 4 divisors (see below), whose sum is σ = 158169648. Its totient is φ = 158114760.

The previous prime is 158142167. The next prime is 158142217. The reversal of 158142203 is 302241851.

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 158142203 - 2⁶ = 158142139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158142293) 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, 1376 + ... + 17837.

It is an arithmetic number, because the mean of its divisors is an integer number (39542412).

Almost surely, 2^158142203 is an apocalyptic number.

158142203 is a deficient number, since it is larger than the sum of its proper divisors (27445).

158142203 is an equidigital number, since it uses as much as digits as its factorization.

158142203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27444.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 158142203 is about 12575.4603494266. The cubic root of 158142203 is about 540.7741559691.

The spelling of 158142203 in words is "one hundred fifty-eight million, one hundred forty-two thousand, two hundred three".