126465161 has 2 divisors, whose sum is σ = 126465162. Its totient is φ = 126465160.

The previous prime is 126465133. The next prime is 126465167. The reversal of 126465161 is 161564621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100902025 + 25563136 = 10045^2 + 5056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126465161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126465167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63232580 + 63232581.

It is an arithmetic number, because the mean of its divisors is an integer number (63232581).

Almost surely, 2^126465161 is an apocalyptic number.

It is an amenable number.

126465161 is a deficient number, since it is larger than the sum of its proper divisors (1).

126465161 is an equidigital number, since it uses as much as digits as its factorization.

126465161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 126465161 is about 11245.6729900882. The cubic root of 126465161 is about 501.9459646182.

The spelling of 126465161 in words is "one hundred twenty-six million, four hundred sixty-five thousand, one hundred sixty-one".