223142522 has 4 divisors (see below), whose sum is σ = 334713786. Its totient is φ = 111571260.

The previous prime is 223142519. The next prime is 223142533. The reversal of 223142522 is 225241322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225241322 = 2 ⋅112620661.

It can be written as a sum of positive squares in only one way, i.e., 208542481 + 14600041 = 14441^2 + 3821^2 .

It is a super-3 number, since 3×223142522³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55785629 + ... + 55785632.

Almost surely, 2^223142522 is an apocalyptic number.

223142522 is a deficient number, since it is larger than the sum of its proper divisors (111571264).

223142522 is a wasteful number, since it uses less digits than its factorization.

223142522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111571263.

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

The square root of 223142522 is about 14937.9557503696. The cubic root of 223142522 is about 606.5418605046.

Adding to 223142522 its reverse (225241322), we get a palindrome (448383844).

The spelling of 223142522 in words is "two hundred twenty-three million, one hundred forty-two thousand, five hundred twenty-two".