223534457 has 8 divisors (see below), whose sum is σ = 225792840. Its totient is φ = 221287680.

The previous prime is 223534433. The next prime is 223534469. The reversal of 223534457 is 754435322.

It can be written as a sum of positive squares in 4 ways, for example, as 70492816 + 153041641 = 8396^2 + 12371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223534457 - 2⁶ = 223534393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223534417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38753 + ... + 44145.

It is an arithmetic number, because the mean of its divisors is an integer number (28224105).

Almost surely, 2^223534457 is an apocalyptic number.

It is an amenable number.

223534457 is a deficient number, since it is larger than the sum of its proper divisors (2258383).

223534457 is a wasteful number, since it uses less digits than its factorization.

223534457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803.

The product of its digits is 100800, while the sum is 35.

The square root of 223534457 is about 14951.0687577845. The cubic root of 223534457 is about 606.8967696077.

Adding to 223534457 its reverse (754435322), we get a palindrome (977969779).

The spelling of 223534457 in words is "two hundred twenty-three million, five hundred thirty-four thousand, four hundred fifty-seven".