223140421 has 8 divisors (see below), whose sum is σ = 255824640. Its totient is φ = 190657968.

The previous prime is 223140391. The next prime is 223140431. The reversal of 223140421 is 124041322.

223140421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 223140421 - 2¹¹ = 223138373 is a prime.

It is a super-3 number, since 3×223140421³ (a number of 26 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 (223140431) 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, 48061 + ... + 52498.

It is an arithmetic number, because the mean of its divisors is an integer number (31978080).

Almost surely, 2^223140421 is an apocalyptic number.

It is an amenable number.

223140421 is a deficient number, since it is larger than the sum of its proper divisors (32684219).

223140421 is a wasteful number, since it uses less digits than its factorization.

223140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100883.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 223140421 is about 14937.8854259899. The cubic root of 223140421 is about 606.5399568656.

Adding to 223140421 its reverse (124041322), we get a palindrome (347181743).

Subtracting from 223140421 its reverse (124041322), we obtain a palindrome (99099099).

The spelling of 223140421 in words is "two hundred twenty-three million, one hundred forty thousand, four hundred twenty-one".