224340157 has 2 divisors, whose sum is σ = 224340158. Its totient is φ = 224340156.

The previous prime is 224340113. The next prime is 224340173. The reversal of 224340157 is 751043422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161518681 + 62821476 = 12709^2 + 7926^2 .

It is a cyclic number.

It is not a de Polignac number, because 224340157 - 2²⁷ = 90122429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224340107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112170078 + 112170079.

It is an arithmetic number, because the mean of its divisors is an integer number (112170079).

Almost surely, 2^224340157 is an apocalyptic number.

It is an amenable number.

224340157 is a deficient number, since it is larger than the sum of its proper divisors (1).

224340157 is an equidigital number, since it uses as much as digits as its factorization.

224340157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 224340157 is about 14977.9890839859. The cubic root of 224340157 is about 607.6250546690.

Adding to 224340157 its reverse (751043422), we get a palindrome (975383579).

The spelling of 224340157 in words is "two hundred twenty-four million, three hundred forty thousand, one hundred fifty-seven".