228743061 has 4 divisors (see below), whose sum is σ = 304990752. Its totient is φ = 152495372.

The previous prime is 228743057. The next prime is 228743069. The reversal of 228743061 is 160347822.

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 228743061 - 2² = 228743057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228743069) 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, 38123841 + ... + 38123846.

It is an arithmetic number, because the mean of its divisors is an integer number (76247688).

Almost surely, 2^228743061 is an apocalyptic number.

It is an amenable number.

228743061 is a deficient number, since it is larger than the sum of its proper divisors (76247691).

228743061 is an equidigital number, since it uses as much as digits as its factorization.

228743061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76247690.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 228743061 is about 15124.2540642506. The cubic root of 228743061 is about 611.5744163018.

The spelling of 228743061 in words is "two hundred twenty-eight million, seven hundred forty-three thousand, sixty-one".