2643134161 has 4 divisors (see below), whose sum is σ = 2659349872. Its totient is φ = 2626918452.

The previous prime is 2643134149. The next prime is 2643134203. The reversal of 2643134161 is 1614313462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2643134161 - 2⁵ = 2643134129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643134101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8107611 + ... + 8107936.

It is an arithmetic number, because the mean of its divisors is an integer number (664837468).

Almost surely, 2^2643134161 is an apocalyptic number.

It is an amenable number.

2643134161 is a deficient number, since it is larger than the sum of its proper divisors (16215711).

2643134161 is a wasteful number, since it uses less digits than its factorization.

2643134161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16215710.

The product of its digits is 10368, while the sum is 31.

The square root of 2643134161 is about 51411.4205308509. The cubic root of 2643134161 is about 1382.6313584723.

The spelling of 2643134161 in words is "two billion, six hundred forty-three million, one hundred thirty-four thousand, one hundred sixty-one".