206124512449 has 2 divisors, whose sum is σ = 206124512450. Its totient is φ = 206124512448.

The previous prime is 206124512411. The next prime is 206124512497. The reversal of 206124512449 is 944215421602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126526047025 + 79598465424 = 355705^2 + 282132^2 .

It is a cyclic number.

It is not a de Polignac number, because 206124512449 - 2¹⁷ = 206124381377 is a prime.

It is not a weakly prime, because it can be changed into another prime (206124512549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103062256224 + 103062256225.

It is an arithmetic number, because the mean of its divisors is an integer number (103062256225).

Almost surely, 2^206124512449 is an apocalyptic number.

It is an amenable number.

206124512449 is a deficient number, since it is larger than the sum of its proper divisors (1).

206124512449 is an equidigital number, since it uses as much as digits as its factorization.

206124512449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 206124512449 in words is "two hundred six billion, one hundred twenty-four million, five hundred twelve thousand, four hundred forty-nine".