2061161 has 2 divisors, whose sum is σ = 2061162. Its totient is φ = 2061160.

The previous prime is 2061149. The next prime is 2061173. The reversal of 2061161 is 1611602.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2061149) and next prime (2061173).

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 1936 = 1435^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061161 - 2¹⁰ = 2060137 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2061181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030580 + 1030581.

It is an arithmetic number, because the mean of its divisors is an integer number (1030581).

2^2061161 is an apocalyptic number.

It is an amenable number.

2061161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061161 is an equidigital number, since it uses as much as digits as its factorization.

2061161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2061161 is about 1435.6744059849. The cubic root of 2061161 is about 127.2635319733.

Adding to 2061161 its reverse (1611602), we get a palindrome (3672763).

It can be divided in two parts, 2061 and 161, that added together give a palindrome (2222).

The spelling of 2061161 in words is "two million, sixty-one thousand, one hundred sixty-one".