223254513543 has 8 divisors (see below), whose sum is σ = 297679491568. Its totient is φ = 148832938944.

The previous prime is 223254513541. The next prime is 223254513571. The reversal of 223254513543 is 345315452322.

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

It is not a de Polignac number, because 223254513543 - 2¹ = 223254513541 is a prime.

It is a super-3 number, since 3×223254513543³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223254513541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693646 + ... + 963147.

It is an arithmetic number, because the mean of its divisors is an integer number (37209936446).

Almost surely, 2^223254513543 is an apocalyptic number.

223254513543 is a deficient number, since it is larger than the sum of its proper divisors (74424978025).

223254513543 is a wasteful number, since it uses less digits than its factorization.

223254513543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701713.

The product of its digits is 432000, while the sum is 39.

Adding to 223254513543 its reverse (345315452322), we get a palindrome (568569965865).

The spelling of 223254513543 in words is "two hundred twenty-three billion, two hundred fifty-four million, five hundred thirteen thousand, five hundred forty-three".