338182561 has 2 divisors, whose sum is σ = 338182562. Its totient is φ = 338182560.

The previous prime is 338182541. The next prime is 338182583. The reversal of 338182561 is 165281833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332150625 + 6031936 = 18225^2 + 2456^2 .

It is a cyclic number.

It is not a de Polignac number, because 338182561 - 2⁹ = 338182049 is a prime.

It is a super-2 number, since 2×338182561² = 228734889129037442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338182561.

It is not a weakly prime, because it can be changed into another prime (338182511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169091280 + 169091281.

It is an arithmetic number, because the mean of its divisors is an integer number (169091281).

Almost surely, 2^338182561 is an apocalyptic number.

It is an amenable number.

338182561 is a deficient number, since it is larger than the sum of its proper divisors (1).

338182561 is an equidigital number, since it uses as much as digits as its factorization.

338182561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 338182561 is about 18389.7406452620. The cubic root of 338182561 is about 696.7073671370.

The spelling of 338182561 in words is "three hundred thirty-eight million, one hundred eighty-two thousand, five hundred sixty-one".