245596649 has 2 divisors, whose sum is σ = 245596650. Its totient is φ = 245596648.

The previous prime is 245596643. The next prime is 245596669. The reversal of 245596649 is 946695542.

It is a happy number.

245596649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199939600 + 45657049 = 14140^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 245596649 - 2⁴ = 245596633 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 245596597 and 245596606.

It is not a weakly prime, because it can be changed into another prime (245596643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122798324 + 122798325.

It is an arithmetic number, because the mean of its divisors is an integer number (122798325).

Almost surely, 2^245596649 is an apocalyptic number.

It is an amenable number.

245596649 is a deficient number, since it is larger than the sum of its proper divisors (1).

245596649 is an equidigital number, since it uses as much as digits as its factorization.

245596649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 50.

The square root of 245596649 is about 15671.5235060284. The cubic root of 245596649 is about 626.2400119788.

The spelling of 245596649 in words is "two hundred forty-five million, five hundred ninety-six thousand, six hundred forty-nine".