862538161 has 9 divisors (see below), whose sum is σ = 884358489. Its totient is φ = 841245636.

The previous prime is 862538147. The next prime is 862538177. The reversal of 862538161 is 161835268.

The square root of 862538161 is 29369.

It is a perfect power (a square), and thus also a powerful number.

862538161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-862538161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (862532161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1262526 + ... + 1263208.

Almost surely, 2^862538161 is an apocalyptic number.

862538161 is the 29369-th square number.

862538161 is the 14685-th centered octagonal number.

It is an amenable number.

862538161 is a deficient number, since it is larger than the sum of its proper divisors (21820328).

862538161 is an frugal number, since it uses more digits than its factorization.

862538161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 726 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The cubic root of 862538161 is about 951.9031694378.

The spelling of 862538161 in words is "eight hundred sixty-two million, five hundred thirty-eight thousand, one hundred sixty-one".