223140277 has 2 divisors, whose sum is σ = 223140278. Its totient is φ = 223140276.

The previous prime is 223140259. The next prime is 223140289. The reversal of 223140277 is 772041322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173211921 + 49928356 = 13161^2 + 7066^2 .

It is a cyclic number.

It is not a de Polignac number, because 223140277 - 2¹⁵ = 223107509 is a prime.

It is a super-3 number, since 3×223140277³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223140977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111570138 + 111570139.

It is an arithmetic number, because the mean of its divisors is an integer number (111570139).

Almost surely, 2^223140277 is an apocalyptic number.

It is an amenable number.

223140277 is a deficient number, since it is larger than the sum of its proper divisors (1).

223140277 is an equidigital number, since it uses as much as digits as its factorization.

223140277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 223140277 is about 14937.8806060298. The cubic root of 223140277 is about 606.5398263920.

Adding to 223140277 its reverse (772041322), we get a palindrome (995181599).

The spelling of 223140277 in words is "two hundred twenty-three million, one hundred forty thousand, two hundred seventy-seven".