652640141 has 2 divisors, whose sum is σ = 652640142. Its totient is φ = 652640140.

The previous prime is 652640129. The next prime is 652640143. The reversal of 652640141 is 141046256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652598116 + 42025 = 25546^2 + 205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652640141 is a prime.

Together with 652640143, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_33923522 and since 652640141 and 33923522 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652640143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326320070 + 326320071.

It is an arithmetic number, because the mean of its divisors is an integer number (326320071).

Almost surely, 2^652640141 is an apocalyptic number.

It is an amenable number.

652640141 is a deficient number, since it is larger than the sum of its proper divisors (1).

652640141 is an equidigital number, since it uses as much as digits as its factorization.

652640141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 652640141 is about 25546.8225225761. The cubic root of 652640141 is about 867.4103381325.

Adding to 652640141 its reverse (141046256), we get a palindrome (793686397).

The spelling of 652640141 in words is "six hundred fifty-two million, six hundred forty thousand, one hundred forty-one".