223245131 has 4 divisors (see below), whose sum is σ = 223298064. Its totient is φ = 223192200.

The previous prime is 223245097. The next prime is 223245133. The reversal of 223245131 is 131542322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131542322 = 2 ⋅65771161.

It is a cyclic number.

It is not a de Polignac number, because 223245131 - 2¹⁰ = 223244107 is a prime.

It is a super-3 number, since 3×223245131³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223245097 and 223245106.

It is not an unprimeable number, because it can be changed into a prime (223245133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19535 + ... + 28776.

It is an arithmetic number, because the mean of its divisors is an integer number (55824516).

Almost surely, 2^223245131 is an apocalyptic number.

223245131 is a deficient number, since it is larger than the sum of its proper divisors (52933).

223245131 is an equidigital number, since it uses as much as digits as its factorization.

223245131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52932.

The product of its digits is 1440, while the sum is 23.

The square root of 223245131 is about 14941.3898617230. The cubic root of 223245131 is about 606.6348162175.

Adding to 223245131 its reverse (131542322), we get a palindrome (354787453).

The spelling of 223245131 in words is "two hundred twenty-three million, two hundred forty-five thousand, one hundred thirty-one".