162791423 has 4 divisors (see below), whose sum is σ = 163115568. Its totient is φ = 162467280.

The previous prime is 162791417. The next prime is 162791437. The reversal of 162791423 is 324197261.

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 162791423 - 2⁶ = 162791359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162751423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161318 + ... + 162323.

It is an arithmetic number, because the mean of its divisors is an integer number (40778892).

Almost surely, 2^162791423 is an apocalyptic number.

162791423 is a deficient number, since it is larger than the sum of its proper divisors (324145).

162791423 is an equidigital number, since it uses as much as digits as its factorization.

162791423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324144.

The product of its digits is 18144, while the sum is 35.

The square root of 162791423 is about 12758.9742142541. The cubic root of 162791423 is about 546.0224590135.

The spelling of 162791423 in words is "one hundred sixty-two million, seven hundred ninety-one thousand, four hundred twenty-three".