680158 has 4 divisors (see below), whose sum is σ = 1020240. Its totient is φ = 340078.

The previous prime is 680129. The next prime is 680159. The reversal of 680158 is 851086.

It is a happy number.

680158 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 is a super-2 number, since 2×680158² = 925229809928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170038 + ... + 170041.

It is an arithmetic number, because the mean of its divisors is an integer number (255060).

2⁶⁸⁰¹⁵⁸ is an apocalyptic number.

680158 is a deficient number, since it is larger than the sum of its proper divisors (340082).

680158 is a wasteful number, since it uses less digits than its factorization.

680158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340081.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 680158 is about 824.7169211311. The cubic root of 680158 is about 87.9434036911.

It can be divided in two parts, 6801 and 58, that added together give a cube (6859 = 19³).

The spelling of 680158 in words is "six hundred eighty thousand, one hundred fifty-eight".