686453161 has 16 divisors (see below), whose sum is σ = 711952384. Its totient is φ = 661457664.

The previous prime is 686453143. The next prime is 686453167. The reversal of 686453161 is 161354686.

686453161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 686453161 - 2²⁹ = 149582249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686453167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840171 + ... + 1840543.

It is an arithmetic number, because the mean of its divisors is an integer number (44497024).

Almost surely, 2^686453161 is an apocalyptic number.

It is an amenable number.

686453161 is a deficient number, since it is larger than the sum of its proper divisors (25499223).

686453161 is a wasteful number, since it uses less digits than its factorization.

686453161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its digits is 103680, while the sum is 40.

The square root of 686453161 is about 26200.2511629183. The cubic root of 686453161 is about 882.1388918684.

It can be divided in two parts, 6864 and 53161, that added together give a square (60025 = 245²).

The spelling of 686453161 in words is "six hundred eighty-six million, four hundred fifty-three thousand, one hundred sixty-one".