680841145 has 16 divisors (see below), whose sum is σ = 839659392. Its totient is φ = 529683840.

The previous prime is 680841137. The next prime is 680841167. The reversal of 680841145 is 541148086.

It is not a de Polignac number, because 680841145 - 2³ = 680841137 is a prime.

It is a super-2 number, since 2×680841145² = 927089329449822050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43300 + ... + 56890.

It is an arithmetic number, because the mean of its divisors is an integer number (52478712).

Almost surely, 2^680841145 is an apocalyptic number.

It is an amenable number.

680841145 is a deficient number, since it is larger than the sum of its proper divisors (158818247).

680841145 is a wasteful number, since it uses less digits than its factorization.

680841145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13872.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 680841145 is about 26092.9328554687. The cubic root of 680841145 is about 879.7283704519.

The spelling of 680841145 in words is "six hundred eighty million, eight hundred forty-one thousand, one hundred forty-five".