1207006561 has 2 divisors, whose sum is σ = 1207006562. Its totient is φ = 1207006560.

The previous prime is 1207006553. The next prime is 1207006583. The reversal of 1207006561 is 1656007021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141088400 + 65918161 = 33780^2 + 8119^2 .

It is an emirp because it is prime and its reverse (1656007021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1207006561 - 2³ = 1207006553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1207001561) 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, 603503280 + 603503281.

It is an arithmetic number, because the mean of its divisors is an integer number (603503281).

Almost surely, 2^1207006561 is an apocalyptic number.

It is an amenable number.

1207006561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1207006561 is an equidigital number, since it uses as much as digits as its factorization.

1207006561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1207006561 is about 34741.9999568246. Note that the first 4 decimals coincide. The cubic root of 1207006561 is about 1064.7227741328.

The spelling of 1207006561 in words is "one billion, two hundred seven million, six thousand, five hundred sixty-one".