682940149 has 2 divisors, whose sum is σ = 682940150. Its totient is φ = 682940148.

The previous prime is 682940143. The next prime is 682940177. The reversal of 682940149 is 941049286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 637916049 + 45024100 = 25257^2 + 6710^2 .

It is a cyclic number.

It is not a de Polignac number, because 682940149 - 2²¹ = 680842997 is a prime.

It is a super-2 number, since 2×682940149² = 932814494232284402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (682940143) 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, 341470074 + 341470075.

It is an arithmetic number, because the mean of its divisors is an integer number (341470075).

Almost surely, 2^682940149 is an apocalyptic number.

It is an amenable number.

682940149 is a deficient number, since it is larger than the sum of its proper divisors (1).

682940149 is an equidigital number, since it uses as much as digits as its factorization.

682940149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 682940149 is about 26133.1235982230. The cubic root of 682940149 is about 880.6314979096.

The spelling of 682940149 in words is "six hundred eighty-two million, nine hundred forty thousand, one hundred forty-nine".