201401245961 has 2 divisors, whose sum is σ = 201401245962. Its totient is φ = 201401245960.

The previous prime is 201401245937. The next prime is 201401245987. The reversal of 201401245961 is 169542104102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198447975625 + 2953270336 = 445475^2 + 54344^2 .

It is a cyclic number.

It is not a de Polignac number, because 201401245961 - 2³⁴ = 184221376777 is a prime.

It is not a weakly prime, because it can be changed into another prime (201401245931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100700622980 + 100700622981.

It is an arithmetic number, because the mean of its divisors is an integer number (100700622981).

Almost surely, 2^201401245961 is an apocalyptic number.

It is an amenable number.

201401245961 is a deficient number, since it is larger than the sum of its proper divisors (1).

201401245961 is an equidigital number, since it uses as much as digits as its factorization.

201401245961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 201401245961 in words is "two hundred one billion, four hundred one million, two hundred forty-five thousand, nine hundred sixty-one".