223139689 has 4 divisors (see below), whose sum is σ = 223210240. Its totient is φ = 223069140.

The previous prime is 223139669. The next prime is 223139713. The reversal of 223139689 is 986931322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223139689 - 2⁷ = 223139561 is a prime.

It is a super-3 number, since 3×223139689³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223139669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30297 + ... + 36934.

It is an arithmetic number, because the mean of its divisors is an integer number (55802560).

Almost surely, 2^223139689 is an apocalyptic number.

It is an amenable number.

223139689 is a deficient number, since it is larger than the sum of its proper divisors (70551).

223139689 is an equidigital number, since it uses as much as digits as its factorization.

223139689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70550.

The product of its digits is 139968, while the sum is 43.

The square root of 223139689 is about 14937.8609245099. The cubic root of 223139689 is about 606.5392936244.

The spelling of 223139689 in words is "two hundred twenty-three million, one hundred thirty-nine thousand, six hundred eighty-nine".