2997161 has 4 divisors (see below), whose sum is σ = 3038292. Its totient is φ = 2956032.

The previous prime is 2997157. The next prime is 2997209. The reversal of 2997161 is 1617992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 912025 + 2085136 = 955^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 2997161 - 2² = 2997157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2997101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20456 + ... + 20601.

It is an arithmetic number, because the mean of its divisors is an integer number (759573).

2^2997161 is an apocalyptic number.

It is an amenable number.

2997161 is a deficient number, since it is larger than the sum of its proper divisors (41131).

2997161 is an equidigital number, since it uses as much as digits as its factorization.

2997161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41130.

The product of its digits is 6804, while the sum is 35.

The square root of 2997161 is about 1731.2310648784. The cubic root of 2997161 is about 144.1794477106.

The spelling of 2997161 in words is "two million, nine hundred ninety-seven thousand, one hundred sixty-one".