222161542 has 16 divisors (see below), whose sum is σ = 362383200. Its totient is φ = 101720448.

The previous prime is 222161507. The next prime is 222161549. The reversal of 222161542 is 245161222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222161549) 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, 87042 + ... + 89557.

It is an arithmetic number, because the mean of its divisors is an integer number (22648950).

Almost surely, 2^222161542 is an apocalyptic number.

222161542 is a deficient number, since it is larger than the sum of its proper divisors (140221658).

222161542 is a wasteful number, since it uses less digits than its factorization.

222161542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176655.

The product of its digits is 1920, while the sum is 25.

The square root of 222161542 is about 14905.0844345143. The cubic root of 222161542 is about 605.6517276178.

The spelling of 222161542 in words is "two hundred twenty-two million, one hundred sixty-one thousand, five hundred forty-two".