2051130161 has 24 divisors (see below), whose sum is σ = 2216688480. Its totient is φ = 1897131456.

The previous prime is 2051130127. The next prime is 2051130163. The reversal of 2051130161 is 1610311502.

It is a de Polignac number, because none of the positive numbers 2^k-2051130161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051130163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3313310 + ... + 3313928.

It is an arithmetic number, because the mean of its divisors is an integer number (92362020).

Almost surely, 2^2051130161 is an apocalyptic number.

It is an amenable number.

2051130161 is a deficient number, since it is larger than the sum of its proper divisors (165558319).

2051130161 is a wasteful number, since it uses less digits than its factorization.

2051130161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2051130161 is about 45289.4045114307. The cubic root of 2051130161 is about 1270.5674941220.

Adding to 2051130161 its reverse (1610311502), we get a palindrome (3661441663).

The spelling of 2051130161 in words is "two billion, fifty-one million, one hundred thirty thousand, one hundred sixty-one".