222162639 has 8 divisors (see below), whose sum is σ = 303105792. Its totient is φ = 144663960.

The previous prime is 222162637. The next prime is 222162653. The reversal of 222162639 is 936261222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222162639 - 2¹ = 222162637 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222162631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860967 + ... + 861224.

It is an arithmetic number, because the mean of its divisors is an integer number (37888224).

Almost surely, 2^222162639 is an apocalyptic number.

222162639 is a deficient number, since it is larger than the sum of its proper divisors (80943153).

222162639 is a wasteful number, since it uses less digits than its factorization.

222162639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722237.

The product of its digits is 15552, while the sum is 33.

The square root of 222162639 is about 14905.1212339920. The cubic root of 222162639 is about 605.6527244883.

The spelling of 222162639 in words is "two hundred twenty-two million, one hundred sixty-two thousand, six hundred thirty-nine".