1361202163 has 4 divisors (see below), whose sum is σ = 1363805368. Its totient is φ = 1358598960.

The previous prime is 1361202151. The next prime is 1361202179. The reversal of 1361202163 is 3612021631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3612021631 = 12413 ⋅290987.

It is a cyclic number.

It is not a de Polignac number, because 1361202163 - 2⁹ = 1361201651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361202103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300818 + ... + 1301863.

It is an arithmetic number, because the mean of its divisors is an integer number (340951342).

Almost surely, 2^1361202163 is an apocalyptic number.

1361202163 is a deficient number, since it is larger than the sum of its proper divisors (2603205).

1361202163 is an equidigital number, since it uses as much as digits as its factorization.

1361202163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603204.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1361202163 is about 36894.4733395125. The cubic root of 1361202163 is about 1108.2580048275.

Adding to 1361202163 its reverse (3612021631), we get a palindrome (4973223794).

The spelling of 1361202163 in words is "one billion, three hundred sixty-one million, two hundred two thousand, one hundred sixty-three".