223245157 has 2 divisors, whose sum is σ = 223245158. Its totient is φ = 223245156.

The previous prime is 223245151. The next prime is 223245221. The reversal of 223245157 is 751542322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155775361 + 67469796 = 12481^2 + 8214^2 .

It is a cyclic number.

It is not a de Polignac number, because 223245157 - 2³ = 223245149 is a prime.

It is a super-3 number, since 3×223245157³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223245151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111622578 + 111622579.

It is an arithmetic number, because the mean of its divisors is an integer number (111622579).

Almost surely, 2^223245157 is an apocalyptic number.

It is an amenable number.

223245157 is a deficient number, since it is larger than the sum of its proper divisors (1).

223245157 is an equidigital number, since it uses as much as digits as its factorization.

223245157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 31.

The square root of 223245157 is about 14941.3907317893. The cubic root of 223245157 is about 606.6348397679.

Adding to 223245157 its reverse (751542322), we get a palindrome (974787479).

The spelling of 223245157 in words is "two hundred twenty-three million, two hundred forty-five thousand, one hundred fifty-seven".