1201163617 has 2 divisors, whose sum is σ = 1201163618. Its totient is φ = 1201163616.

The previous prime is 1201163581. The next prime is 1201163629. The reversal of 1201163617 is 7163611021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1035294976 + 165868641 = 32176^2 + 12879^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201163617 - 2¹¹ = 1201161569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201163647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600581808 + 600581809.

It is an arithmetic number, because the mean of its divisors is an integer number (600581809).

Almost surely, 2^1201163617 is an apocalyptic number.

It is an amenable number.

1201163617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201163617 is an equidigital number, since it uses as much as digits as its factorization.

1201163617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1201163617 is about 34657.8074465192. The cubic root of 1201163617 is about 1063.0019381027.

Adding to 1201163617 its reverse (7163611021), we get a palindrome (8364774638).

The spelling of 1201163617 in words is "one billion, two hundred one million, one hundred sixty-three thousand, six hundred seventeen".