6201161 has 2 divisors, whose sum is σ = 6201162. Its totient is φ = 6201160.

The previous prime is 6201149. The next prime is 6201187. The reversal of 6201161 is 1611026.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4227136 + 1974025 = 2056^2 + 1405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6201161 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6201061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100580 + 3100581.

It is an arithmetic number, because the mean of its divisors is an integer number (3100581).

Almost surely, 2^6201161 is an apocalyptic number.

It is an amenable number.

6201161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6201161 is an equidigital number, since it uses as much as digits as its factorization.

6201161 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 6201161 is about 2490.2130430949. The cubic root of 6201161 is about 183.7205212864.

Adding to 6201161 its reverse (1611026), we get a palindrome (7812187).

The spelling of 6201161 in words is "six million, two hundred one thousand, one hundred sixty-one".