228136343 has 4 divisors (see below), whose sum is σ = 228471048. Its totient is φ = 227801640.

The previous prime is 228136331. The next prime is 228136351. The reversal of 228136343 is 343631822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228136343 - 2⁸ = 228136087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228136393) 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, 166328 + ... + 167693.

It is an arithmetic number, because the mean of its divisors is an integer number (57117762).

Almost surely, 2^228136343 is an apocalyptic number.

228136343 is a deficient number, since it is larger than the sum of its proper divisors (334705).

228136343 is an equidigital number, since it uses as much as digits as its factorization.

228136343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334704.

The product of its digits is 20736, while the sum is 32.

The square root of 228136343 is about 15104.1829636694. The cubic root of 228136343 is about 611.0332242910.

The spelling of 228136343 in words is "two hundred twenty-eight million, one hundred thirty-six thousand, three hundred forty-three".