356656241 has 2 divisors, whose sum is σ = 356656242. Its totient is φ = 356656240.

The previous prime is 356656231. The next prime is 356656249. The reversal of 356656241 is 142656653.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342102016 + 14554225 = 18496^2 + 3815^2 .

It is an emirp because it is prime and its reverse (142656653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 356656241 - 2¹⁸ = 356394097 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 356656195 and 356656204.

It is not a weakly prime, because it can be changed into another prime (356656249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178328120 + 178328121.

It is an arithmetic number, because the mean of its divisors is an integer number (178328121).

Almost surely, 2^356656241 is an apocalyptic number.

It is an amenable number.

356656241 is a deficient number, since it is larger than the sum of its proper divisors (1).

356656241 is an equidigital number, since it uses as much as digits as its factorization.

356656241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 356656241 is about 18885.3446089819. The cubic root of 356656241 is about 709.1693260810.

The spelling of 356656241 in words is "three hundred fifty-six million, six hundred fifty-six thousand, two hundred forty-one".