2908161 has 12 divisors (see below), whose sum is σ = 4218240. Its totient is φ = 1930680.

The previous prime is 2908151. The next prime is 2908177. The reversal of 2908161 is 1618092.

It is not a de Polignac number, because 2908161 - 2⁹ = 2907649 is a prime.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (2908151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2280 + ... + 3318.

It is an arithmetic number, because the mean of its divisors is an integer number (351520).

It is a Proth number, since it is equal to 355 ⋅ 2¹³ + 1 and 355 < 2¹³.

2^2908161 is an apocalyptic number.

It is an amenable number.

2908161 is a deficient number, since it is larger than the sum of its proper divisors (1310079).

2908161 is a wasteful number, since it uses less digits than its factorization.

2908161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2908161 is about 1705.3331052906. Note that the first 3 decimals coincide. The cubic root of 2908161 is about 142.7379588319.

The spelling of 2908161 in words is "two million, nine hundred eight thousand, one hundred sixty-one".