222543431 has 8 divisors (see below), whose sum is σ = 243680400. Its totient is φ = 201557440.

The previous prime is 222543427. The next prime is 222543463. The reversal of 222543431 is 134345222.

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

It is a cyclic number.

It is not a de Polignac number, because 222543431 - 2² = 222543427 is a prime.

It is a super-2 number, since 2×222543431² = 99051157362503522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222543431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222543401) 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, 34646 + ... + 40563.

It is an arithmetic number, because the mean of its divisors is an integer number (30460050).

Almost surely, 2^222543431 is an apocalyptic number.

222543431 is a deficient number, since it is larger than the sum of its proper divisors (21136969).

222543431 is a wasteful number, since it uses less digits than its factorization.

222543431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75489.

The product of its digits is 5760, while the sum is 26.

The square root of 222543431 is about 14917.8896295689. The cubic root of 222543431 is about 605.9985613214.

Adding to 222543431 its reverse (134345222), we get a palindrome (356888653).

The spelling of 222543431 in words is "two hundred twenty-two million, five hundred forty-three thousand, four hundred thirty-one".