162218894 has 4 divisors (see below), whose sum is σ = 243328344. Its totient is φ = 81109446.

The previous prime is 162218893. The next prime is 162218899. The reversal of 162218894 is 498812261.

162218894 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162218893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40554722 + ... + 40554725.

It is an arithmetic number, because the mean of its divisors is an integer number (60832086).

Almost surely, 2^162218894 is an apocalyptic number.

162218894 is a deficient number, since it is larger than the sum of its proper divisors (81109450).

162218894 is an equidigital number, since it uses as much as digits as its factorization.

162218894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81109449.

The product of its digits is 55296, while the sum is 41.

The square root of 162218894 is about 12736.5181270236. The cubic root of 162218894 is about 545.3815962324.

The spelling of 162218894 in words is "one hundred sixty-two million, two hundred eighteen thousand, eight hundred ninety-four".