1631163112 has 8 divisors (see below), whose sum is σ = 3058430850. Its totient is φ = 815581552.

The previous prime is 1631163109. The next prime is 1631163113. The reversal of 1631163112 is 2113611361.

It can be written as a sum of positive squares in only one way, i.e., 882921796 + 748241316 = 29714^2 + 27354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1631163113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101947687 + ... + 101947702.

Almost surely, 2^1631163112 is an apocalyptic number.

It is an amenable number.

1631163112 is a deficient number, since it is larger than the sum of its proper divisors (1427267738).

1631163112 is a wasteful number, since it uses less digits than its factorization.

1631163112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203895395 (or 203895391 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 1631163112 is about 40387.6603927487. The cubic root of 1631163112 is about 1177.1517804680.

Adding to 1631163112 its reverse (2113611361), we get a palindrome (3744774473).

The spelling of 1631163112 in words is "one billion, six hundred thirty-one million, one hundred sixty-three thousand, one hundred twelve".