680062149 has 20 divisors (see below), whose sum is σ = 1094042796. Its totient is φ = 418499136.

The previous prime is 680062139. The next prime is 680062153. The reversal of 680062149 is 941260086.

It can be written as a sum of positive squares in 2 ways, for example, as 445421025 + 234641124 = 21105^2 + 15318^2 .

It is not a de Polignac number, because 680062149 - 2¹⁶ = 679996613 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680062139) 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 in 19 ways as a sum of consecutive naturals, for example, 321864 + ... + 323969.

Almost surely, 2^680062149 is an apocalyptic number.

It is an amenable number.

680062149 is a deficient number, since it is larger than the sum of its proper divisors (413980647).

680062149 is a wasteful number, since it uses less digits than its factorization.

680062149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645858 (or 645849 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 680062149 is about 26078.0012462612. The cubic root of 680062149 is about 879.3927236711.

The spelling of 680062149 in words is "six hundred eighty million, sixty-two thousand, one hundred forty-nine".