223439137 has 4 divisors (see below), whose sum is σ = 228635440. Its totient is φ = 218242836.

The previous prime is 223439131. The next prime is 223439159. The reversal of 223439137 is 731934322.

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 223439137 - 2¹¹ = 223437089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223439131) 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, 2598087 + ... + 2598172.

It is an arithmetic number, because the mean of its divisors is an integer number (57158860).

Almost surely, 2^223439137 is an apocalyptic number.

It is an amenable number.

223439137 is a deficient number, since it is larger than the sum of its proper divisors (5196303).

223439137 is an equidigital number, since it uses as much as digits as its factorization.

223439137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196302.

The product of its digits is 27216, while the sum is 34.

The square root of 223439137 is about 14947.8806859033. The cubic root of 223439137 is about 606.8104926409.

The spelling of 223439137 in words is "two hundred twenty-three million, four hundred thirty-nine thousand, one hundred thirty-seven".