2973161 has 2 divisors, whose sum is σ = 2973162. Its totient is φ = 2973160.

The previous prime is 2973151. The next prime is 2973163. The reversal of 2973161 is 1613792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 913936 = 1435^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 2973161 - 2⁶ = 2973097 is a prime.

It is a Sophie Germain prime.

Together with 2973163, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2973163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486580 + 1486581.

It is an arithmetic number, because the mean of its divisors is an integer number (1486581).

2^2973161 is an apocalyptic number.

It is an amenable number.

2973161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2973161 is an equidigital number, since it uses as much as digits as its factorization.

2973161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 2973161 is about 1724.2856491893. The cubic root of 2973161 is about 143.7935731803.

It can be divided in two parts, 29731 and 61, that added together give a palindrome (29792).

The spelling of 2973161 in words is "two million, nine hundred seventy-three thousand, one hundred sixty-one".