680145 has 8 divisors (see below), whose sum is σ = 1088256. Its totient is φ = 362736.

The previous prime is 680129. The next prime is 680159. The reversal of 680145 is 541086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680145 - 2⁴ = 680129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22657 + ... + 22686.

It is an arithmetic number, because the mean of its divisors is an integer number (136032).

2⁶⁸⁰¹⁴⁵ is an apocalyptic number.

It is an amenable number.

680145 is a deficient number, since it is larger than the sum of its proper divisors (408111).

680145 is a wasteful number, since it uses less digits than its factorization.

680145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45351.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 680145 is about 824.7090396012. The cubic root of 680145 is about 87.9428433941.

The spelling of 680145 in words is "six hundred eighty thousand, one hundred forty-five".