223145033437 has 2 divisors, whose sum is σ = 223145033438. Its totient is φ = 223145033436.

The previous prime is 223145033399. The next prime is 223145033459. The reversal of 223145033437 is 734330541322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199249747876 + 23895285561 = 446374^2 + 154581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223145033437 is a prime.

It is a super-3 number, since 3×223145033437³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223145033396 and 223145033405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223145039437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111572516718 + 111572516719.

It is an arithmetic number, because the mean of its divisors is an integer number (111572516719).

Almost surely, 2^223145033437 is an apocalyptic number.

It is an amenable number.

223145033437 is a deficient number, since it is larger than the sum of its proper divisors (1).

223145033437 is an equidigital number, since it uses as much as digits as its factorization.

223145033437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 37.

Adding to 223145033437 its reverse (734330541322), we get a palindrome (957475574759).

The spelling of 223145033437 in words is "two hundred twenty-three billion, one hundred forty-five million, thirty-three thousand, four hundred thirty-seven".