245124044449 has 2 divisors, whose sum is σ = 245124044450. Its totient is φ = 245124044448.

The previous prime is 245124044323. The next prime is 245124044467. The reversal of 245124044449 is 944440421542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214220865600 + 30903178849 = 462840^2 + 175793^2 .

It is a cyclic number.

It is not a de Polignac number, because 245124044449 - 2²⁵ = 245090490017 is a prime.

It is not a weakly prime, because it can be changed into another prime (245124044849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122562022224 + 122562022225.

It is an arithmetic number, because the mean of its divisors is an integer number (122562022225).

Almost surely, 2^245124044449 is an apocalyptic number.

It is an amenable number.

245124044449 is a deficient number, since it is larger than the sum of its proper divisors (1).

245124044449 is an equidigital number, since it uses as much as digits as its factorization.

245124044449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 245124044449 in words is "two hundred forty-five billion, one hundred twenty-four million, forty-four thousand, four hundred forty-nine".