222540134 has 16 divisors (see below), whose sum is σ = 359562240. Its totient is φ = 102998280.

The previous prime is 222540133. The next prime is 222540173. The reversal of 222540134 is 431045222.

It is a happy number.

222540134 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 super-2 number, since 2×222540134² = 99048222481475912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222540133) 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, 76604 + ... + 79455.

It is an arithmetic number, because the mean of its divisors is an integer number (22472640).

Almost surely, 2^222540134 is an apocalyptic number.

222540134 is a deficient number, since it is larger than the sum of its proper divisors (137022106).

222540134 is a wasteful number, since it uses less digits than its factorization.

222540134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156115.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 222540134 is about 14917.7791242530. The cubic root of 222540134 is about 605.9955686664.

Adding to 222540134 its reverse (431045222), we get a palindrome (653585356).

The spelling of 222540134 in words is "two hundred twenty-two million, five hundred forty thousand, one hundred thirty-four".