2896508161 has 4 divisors (see below), whose sum is σ = 3066891012. Its totient is φ = 2726125312.

The previous prime is 2896508149. The next prime is 2896508183. The reversal of 2896508161 is 1618056982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1618056982 = 2 ⋅809028491.

It can be written as a sum of positive squares in 2 ways, for example, as 2120049936 + 776458225 = 46044^2 + 27865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2896508161 - 2⁵ = 2896508129 is a prime.

It is a super-3 number, since 3×2896508161³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2896508761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85191400 + ... + 85191433.

It is an arithmetic number, because the mean of its divisors is an integer number (766722753).

Almost surely, 2^2896508161 is an apocalyptic number.

It is an amenable number.

2896508161 is a deficient number, since it is larger than the sum of its proper divisors (170382851).

2896508161 is a wasteful number, since it uses less digits than its factorization.

2896508161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170382850.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 2896508161 is about 53819.2173949046. The cubic root of 2896508161 is about 1425.4705594417.

The spelling of 2896508161 in words is "two billion, eight hundred ninety-six million, five hundred eight thousand, one hundred sixty-one".