656706133 has 2 divisors, whose sum is σ = 656706134. Its totient is φ = 656706132.

The previous prime is 656706103. The next prime is 656706163. The reversal of 656706133 is 331607656.

It is a balanced prime because it is at equal distance from previous prime (656706103) and next prime (656706163).

It can be written as a sum of positive squares in only one way, i.e., 642014244 + 14691889 = 25338^2 + 3833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656706133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656706092 and 656706101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656706103) 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, 328353066 + 328353067.

It is an arithmetic number, because the mean of its divisors is an integer number (328353067).

Almost surely, 2^656706133 is an apocalyptic number.

It is an amenable number.

656706133 is a deficient number, since it is larger than the sum of its proper divisors (1).

656706133 is an equidigital number, since it uses as much as digits as its factorization.

656706133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 656706133 is about 25626.2781730005. The cubic root of 656706133 is about 869.2079517940.

The spelling of 656706133 in words is "six hundred fifty-six million, seven hundred six thousand, one hundred thirty-three".