223428137 has 2 divisors, whose sum is σ = 223428138. Its totient is φ = 223428136.

The previous prime is 223428097. The next prime is 223428143. The reversal of 223428137 is 731824322.

223428137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148449856 + 74978281 = 12184^2 + 8659^2 .

It is a cyclic number.

It is not a de Polignac number, because 223428137 - 2¹⁴ = 223411753 is a prime.

It is not a weakly prime, because it can be changed into another prime (223428197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111714068 + 111714069.

It is an arithmetic number, because the mean of its divisors is an integer number (111714069).

Almost surely, 2^223428137 is an apocalyptic number.

It is an amenable number.

223428137 is a deficient number, since it is larger than the sum of its proper divisors (1).

223428137 is an equidigital number, since it uses as much as digits as its factorization.

223428137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 223428137 is about 14947.5127362381. The cubic root of 223428137 is about 606.8005346347.

The spelling of 223428137 in words is "two hundred twenty-three million, four hundred twenty-eight thousand, one hundred thirty-seven".