652054181 has 2 divisors, whose sum is σ = 652054182. Its totient is φ = 652054180.

The previous prime is 652054153. The next prime is 652054199. The reversal of 652054181 is 181450256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652036225 + 17956 = 25535^2 + 134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652054181 is a prime.

It is a super-2 number, since 2×652054181² = 850349309919161522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652054111) 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, 326027090 + 326027091.

It is an arithmetic number, because the mean of its divisors is an integer number (326027091).

Almost surely, 2^652054181 is an apocalyptic number.

It is an amenable number.

652054181 is a deficient number, since it is larger than the sum of its proper divisors (1).

652054181 is an equidigital number, since it uses as much as digits as its factorization.

652054181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 652054181 is about 25535.3515934283. The cubic root of 652054181 is about 867.1506646828.

The spelling of 652054181 in words is "six hundred fifty-two million, fifty-four thousand, one hundred eighty-one".