6129961 has 2 divisors, whose sum is σ = 6129962. Its totient is φ = 6129960.

The previous prime is 6129953. The next prime is 6129967. The reversal of 6129961 is 1699216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5040025 + 1089936 = 2245^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 6129961 - 2³ = 6129953 is a prime.

It is not a weakly prime, because it can be changed into another prime (6129967) 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, 3064980 + 3064981.

It is an arithmetic number, because the mean of its divisors is an integer number (3064981).

Almost surely, 2^6129961 is an apocalyptic number.

It is an amenable number.

6129961 is a deficient number, since it is larger than the sum of its proper divisors (1).

6129961 is an equidigital number, since it uses as much as digits as its factorization.

6129961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 34.

The square root of 6129961 is about 2475.8758046396. The cubic root of 6129961 is about 183.0146703081.

The spelling of 6129961 in words is "six million, one hundred twenty-nine thousand, nine hundred sixty-one".