907161961 has 2 divisors, whose sum is σ = 907161962. Its totient is φ = 907161960.

The previous prime is 907161947. The next prime is 907161971. The reversal of 907161961 is 169161709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 677821225 + 229340736 = 26035^2 + 15144^2 .

It is a cyclic number.

It is not a de Polignac number, because 907161961 - 2¹³ = 907153769 is a prime.

It is not a weakly prime, because it can be changed into another prime (907161971) 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, 453580980 + 453580981.

It is an arithmetic number, because the mean of its divisors is an integer number (453580981).

Almost surely, 2^907161961 is an apocalyptic number.

It is an amenable number.

907161961 is a deficient number, since it is larger than the sum of its proper divisors (1).

907161961 is an equidigital number, since it uses as much as digits as its factorization.

907161961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 907161961 is about 30119.1294860924. The cubic root of 907161961 is about 968.0436571760.

The spelling of 907161961 in words is "nine hundred seven million, one hundred sixty-one thousand, nine hundred sixty-one".