12952561 has 2 divisors, whose sum is σ = 12952562. Its totient is φ = 12952560.

The previous prime is 12952549. The next prime is 12952567. The reversal of 12952561 is 16525921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12816400 + 136161 = 3580^2 + 369^2 .

It is a cyclic number.

It is not a de Polignac number, because 12952561 - 2¹³ = 12944369 is a prime.

It is not a weakly prime, because it can be changed into another prime (12952567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6476280 + 6476281.

It is an arithmetic number, because the mean of its divisors is an integer number (6476281).

Almost surely, 2^12952561 is an apocalyptic number.

It is an amenable number.

12952561 is a deficient number, since it is larger than the sum of its proper divisors (1).

12952561 is an equidigital number, since it uses as much as digits as its factorization.

12952561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 12952561 is about 3598.9666572504. The cubic root of 12952561 is about 234.8471074296.

The spelling of 12952561 in words is "twelve million, nine hundred fifty-two thousand, five hundred sixty-one".