2511000161 has 2 divisors, whose sum is σ = 2511000162. Its totient is φ = 2511000160.

The previous prime is 2511000131. The next prime is 2511000209. The reversal of 2511000161 is 1610001152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2021041936 + 489958225 = 44956^2 + 22135^2 .

It is a cyclic number.

It is not a de Polignac number, because 2511000161 - 2¹⁰ = 2510999137 is a prime.

It is not a weakly prime, because it can be changed into another prime (2511000131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255500080 + 1255500081.

It is an arithmetic number, because the mean of its divisors is an integer number (1255500081).

Almost surely, 2^2511000161 is an apocalyptic number.

It is an amenable number.

2511000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511000161 is an equidigital number, since it uses as much as digits as its factorization.

2511000161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 2511000161 is about 50109.8808719398. The cubic root of 2511000161 is about 1359.1964978746.

Subtracting from 2511000161 its reverse (1610001152), we obtain a palindrome (900999009).

The spelling of 2511000161 in words is "two billion, five hundred eleven million, one hundred sixty-one", and thus it is an aban number.