2126962161 has 9 divisors (see below), whose sum is σ = 3072478539. Its totient is φ = 1417882536.

The previous prime is 2126962153. The next prime is 2126962171. The reversal of 2126962161 is 1612696212.

The square root of 2126962161 is 46119.

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

2126962161 is a `hidden beast` number, since 2 + 1 + 26 + 9 + 621 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 33350625 + 2093611536 = 5775^2 + 45756^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2126962161 - 2³ = 2126962153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126962171) 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, 130671 + ... + 146043.

Almost surely, 2^2126962161 is an apocalyptic number.

2126962161 is the 46119-th square number.

2126962161 is the 23060-th centered octagonal number.

It is an amenable number.

2126962161 is a deficient number, since it is larger than the sum of its proper divisors (945516378).

2126962161 is an frugal number, since it uses more digits than its factorization.

2126962161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30752 (or 15376 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The cubic root of 2126962161 is about 1286.0363809268.

Multiplying 2126962161 by its sum of digits (36), we get a square (76570637796 = 276714²).

The spelling of 2126962161 in words is "two billion, one hundred twenty-six million, nine hundred sixty-two thousand, one hundred sixty-one".