245314457 has 2 divisors, whose sum is σ = 245314458. Its totient is φ = 245314456.

The previous prime is 245314427. The next prime is 245314493. The reversal of 245314457 is 754413542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149352841 + 95961616 = 12221^2 + 9796^2 .

It is a cyclic number.

It is not a de Polignac number, because 245314457 - 2²² = 241120153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245314417) 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, 122657228 + 122657229.

It is an arithmetic number, because the mean of its divisors is an integer number (122657229).

Almost surely, 2^245314457 is an apocalyptic number.

It is an amenable number.

245314457 is a deficient number, since it is larger than the sum of its proper divisors (1).

245314457 is an equidigital number, since it uses as much as digits as its factorization.

245314457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 245314457 is about 15662.5175817938. The cubic root of 245314457 is about 626.0000688993. Note that the first 4 decimals are identical.

Adding to 245314457 its reverse (754413542), we get a palindrome (999727999).

The spelling of 245314457 in words is "two hundred forty-five million, three hundred fourteen thousand, four hundred fifty-seven".