223131973 has 2 divisors, whose sum is σ = 223131974. Its totient is φ = 223131972.

The previous prime is 223131967. The next prime is 223132001. The reversal of 223131973 is 379131322.

It is a happy number.

223131973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221950404 + 1181569 = 14898^2 + 1087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223131973 is a prime.

It is a super-3 number, since 3×223131973³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223131173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111565986 + 111565987.

It is an arithmetic number, because the mean of its divisors is an integer number (111565987).

Almost surely, 2^223131973 is an apocalyptic number.

It is an amenable number.

223131973 is a deficient number, since it is larger than the sum of its proper divisors (1).

223131973 is an equidigital number, since it uses as much as digits as its factorization.

223131973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 223131973 is about 14937.6026523669. The cubic root of 223131973 is about 606.5323023220.

The spelling of 223131973 in words is "two hundred twenty-three million, one hundred thirty-one thousand, nine hundred seventy-three".