162158143 has 4 divisors (see below), whose sum is σ = 185323600. Its totient is φ = 138992688.

The previous prime is 162158083. The next prime is 162158149. The reversal of 162158143 is 341851261.

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 162158143 - 2⁹ = 162157631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162158149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11582718 + ... + 11582731.

It is an arithmetic number, because the mean of its divisors is an integer number (46330900).

Almost surely, 2^162158143 is an apocalyptic number.

162158143 is a deficient number, since it is larger than the sum of its proper divisors (23165457).

162158143 is an equidigital number, since it uses as much as digits as its factorization.

162158143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23165456.

The product of its digits is 5760, while the sum is 31.

The square root of 162158143 is about 12734.1329897249. The cubic root of 162158143 is about 545.3135059020.

The spelling of 162158143 in words is "one hundred sixty-two million, one hundred fifty-eight thousand, one hundred forty-three".