2201542961 has 2 divisors, whose sum is σ = 2201542962. Its totient is φ = 2201542960.

The previous prime is 2201542951. The next prime is 2201543039. The reversal of 2201542961 is 1692451022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1563727936 + 637815025 = 39544^2 + 25255^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201542961 - 2³⁰ = 1127801137 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201542951) 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, 1100771480 + 1100771481.

It is an arithmetic number, because the mean of its divisors is an integer number (1100771481).

Almost surely, 2^2201542961 is an apocalyptic number.

It is an amenable number.

2201542961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201542961 is an equidigital number, since it uses as much as digits as its factorization.

2201542961 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2201542961 is about 46920.6027348328. The cubic root of 2201542961 is about 1300.8954306267.

Adding to 2201542961 its reverse (1692451022), we get a palindrome (3893993983).

The spelling of 2201542961 in words is "two billion, two hundred one million, five hundred forty-two thousand, nine hundred sixty-one".