1238116163 has 4 divisors (see below), whose sum is σ = 1271578800. Its totient is φ = 1204653528.

The previous prime is 1238116129. The next prime is 1238116181. The reversal of 1238116163 is 3616118321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3616118321 = 751 ⋅4815071.

It is a cyclic number.

It is not a de Polignac number, because 1238116163 - 2²⁸ = 969680707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1238110163) 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, 16731263 + ... + 16731336.

It is an arithmetic number, because the mean of its divisors is an integer number (317894700).

Almost surely, 2^1238116163 is an apocalyptic number.

1238116163 is a deficient number, since it is larger than the sum of its proper divisors (33462637).

1238116163 is an equidigital number, since it uses as much as digits as its factorization.

1238116163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33462636.

The product of its digits is 5184, while the sum is 32.

The square root of 1238116163 is about 35186.8748683369. The cubic root of 1238116163 is about 1073.7927425757.

The spelling of 1238116163 in words is "one billion, two hundred thirty-eight million, one hundred sixteen thousand, one hundred sixty-three".