245137049 has 2 divisors, whose sum is σ = 245137050. Its totient is φ = 245137048.

The previous prime is 245137043. The next prime is 245137063. The reversal of 245137049 is 940731542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175297600 + 69839449 = 13240^2 + 8357^2 .

It is a cyclic number.

It is not a de Polignac number, because 245137049 - 2¹⁶ = 245071513 is a prime.

It is a super-4 number, since 4×245137049⁴ (a number of 35 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (245137043) 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, 122568524 + 122568525.

It is an arithmetic number, because the mean of its divisors is an integer number (122568525).

Almost surely, 2^245137049 is an apocalyptic number.

It is an amenable number.

245137049 is a deficient number, since it is larger than the sum of its proper divisors (1).

245137049 is an equidigital number, since it uses as much as digits as its factorization.

245137049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 245137049 is about 15656.8531001603. The cubic root of 245137049 is about 625.8491276624.

The spelling of 245137049 in words is "two hundred forty-five million, one hundred thirty-seven thousand, forty-nine".