223131442 has 8 divisors (see below), whose sum is σ = 334773036. Its totient is φ = 111540432.

The previous prime is 223131413. The next prime is 223131457. The reversal of 223131442 is 244131322.

It can be written as a sum of positive squares in 2 ways, for example, as 207043321 + 16088121 = 14389^2 + 4011^2 .

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

It is a super-3 number, since 3×223131442³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1588 + ... + 21184.

Almost surely, 2^223131442 is an apocalyptic number.

223131442 is a deficient number, since it is larger than the sum of its proper divisors (111641594).

223131442 is a wasteful number, since it uses less digits than its factorization.

223131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25292.

The product of its digits is 1152, while the sum is 22.

The square root of 223131442 is about 14937.5848784199. The cubic root of 223131442 is about 606.5318211884.

Adding to 223131442 its reverse (244131322), we get a palindrome (467262764).

The spelling of 223131442 in words is "two hundred twenty-three million, one hundred thirty-one thousand, four hundred forty-two".