6161641 has 2 divisors, whose sum is σ = 6161642. Its totient is φ = 6161640.

The previous prime is 6161629. The next prime is 6161651. The reversal of 6161641 is 1461616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3258025 + 2903616 = 1805^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 6161641 - 2⁵ = 6161609 is a prime.

It is not a weakly prime, because it can be changed into another prime (6161651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080820 + 3080821.

It is an arithmetic number, because the mean of its divisors is an integer number (3080821).

Almost surely, 2^6161641 is an apocalyptic number.

It is an amenable number.

6161641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6161641 is an equidigital number, since it uses as much as digits as its factorization.

6161641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 6161641 is about 2482.2652960552. The cubic root of 6161641 is about 183.3294056091.

Subtracting from 6161641 its sum of digits (25), we obtain a palindrome (6161616).

The spelling of 6161641 in words is "six million, one hundred sixty-one thousand, six hundred forty-one".