680261146 has 4 divisors (see below), whose sum is σ = 1020391722. Its totient is φ = 340130572.

The previous prime is 680261107. The next prime is 680261147. The reversal of 680261146 is 641162086.

680261146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 595896921 + 84364225 = 24411^2 + 9185^2 .

It is not an unprimeable number, because it can be changed into a prime (680261147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170065285 + ... + 170065288.

Almost surely, 2^680261146 is an apocalyptic number.

680261146 is a deficient number, since it is larger than the sum of its proper divisors (340130576).

680261146 is a wasteful number, since it uses less digits than its factorization.

680261146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340130575.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 680261146 is about 26081.8163861338. The cubic root of 680261146 is about 879.4784900715.

The spelling of 680261146 in words is "six hundred eighty million, two hundred sixty-one thousand, one hundred forty-six".