656854141 has 2 divisors, whose sum is σ = 656854142. Its totient is φ = 656854140.

The previous prime is 656854127. The next prime is 656854181. The reversal of 656854141 is 141458656.

It is an a-pointer prime, because the next prime (656854181) can be obtained adding 656854141 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638825625 + 18028516 = 25275^2 + 4246^2 .

It is a cyclic number.

It is not a de Polignac number, because 656854141 - 2¹⁹ = 656329853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656854094 and 656854103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656854181) 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, 328427070 + 328427071.

It is an arithmetic number, because the mean of its divisors is an integer number (328427071).

Almost surely, 2^656854141 is an apocalyptic number.

It is an amenable number.

656854141 is a deficient number, since it is larger than the sum of its proper divisors (1).

656854141 is an equidigital number, since it uses as much as digits as its factorization.

656854141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 40.

The square root of 656854141 is about 25629.1658272367. The cubic root of 656854141 is about 869.2732473959.

The spelling of 656854141 in words is "six hundred fifty-six million, eight hundred fifty-four thousand, one hundred forty-one".