223994133529 has 2 divisors, whose sum is σ = 223994133530. Its totient is φ = 223994133528.

The previous prime is 223994133523. The next prime is 223994133577. The reversal of 223994133529 is 925331499322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214876748304 + 9117385225 = 463548^2 + 95485^2 .

It is a cyclic number.

It is not a de Polignac number, because 223994133529 - 2⁷ = 223994133401 is a prime.

It is not a weakly prime, because it can be changed into another prime (223994133523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111997066764 + 111997066765.

It is an arithmetic number, because the mean of its divisors is an integer number (111997066765).

Almost surely, 2^223994133529 is an apocalyptic number.

It is an amenable number.

223994133529 is a deficient number, since it is larger than the sum of its proper divisors (1).

223994133529 is an equidigital number, since it uses as much as digits as its factorization.

223994133529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 52.

The spelling of 223994133529 in words is "two hundred twenty-three billion, nine hundred ninety-four million, one hundred thirty-three thousand, five hundred twenty-nine".