223513453 has 2 divisors, whose sum is σ = 223513454. Its totient is φ = 223513452.

The previous prime is 223513393. The next prime is 223513487. The reversal of 223513453 is 354315322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219424969 + 4088484 = 14813^2 + 2022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223513453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223513253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111756726 + 111756727.

It is an arithmetic number, because the mean of its divisors is an integer number (111756727).

Almost surely, 2^223513453 is an apocalyptic number.

It is an amenable number.

223513453 is a deficient number, since it is larger than the sum of its proper divisors (1).

223513453 is an equidigital number, since it uses as much as digits as its factorization.

223513453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 28.

The square root of 223513453 is about 14950.3663165823. The cubic root of 223513453 is about 606.8777603698.

Subtracting from 223513453 its product of digits (10800), we obtain a triangular number (223502653 = T₂₁₁₄₂).

Adding to 223513453 its reverse (354315322), we get a palindrome (577828775).

The spelling of 223513453 in words is "two hundred twenty-three million, five hundred thirteen thousand, four hundred fifty-three".