657230113 has 2 divisors, whose sum is σ = 657230114. Its totient is φ = 657230112.

The previous prime is 657230111. The next prime is 657230131. The reversal of 657230113 is 311032756.

Together with next prime (657230131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544615569 + 112614544 = 23337^2 + 10612^2 .

It is a cyclic number.

It is not a de Polignac number, because 657230113 - 2¹ = 657230111 is a prime.

Together with 657230111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (657230111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328615056 + 328615057.

It is an arithmetic number, because the mean of its divisors is an integer number (328615057).

Almost surely, 2^657230113 is an apocalyptic number.

It is an amenable number.

657230113 is a deficient number, since it is larger than the sum of its proper divisors (1).

657230113 is an equidigital number, since it uses as much as digits as its factorization.

657230113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 657230113 is about 25636.4996245587. The cubic root of 657230113 is about 869.4390681086.

Adding to 657230113 its reverse (311032756), we get a palindrome (968262869).

The spelling of 657230113 in words is "six hundred fifty-seven million, two hundred thirty thousand, one hundred thirteen".