1232161633 has 4 divisors (see below), whose sum is σ = 1238353600. Its totient is φ = 1225969668.

The previous prime is 1232161621. The next prime is 1232161639. The reversal of 1232161633 is 3361612321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3361612321 = 18839 ⋅178439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232161633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232161639) 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, 3095685 + ... + 3096082.

It is an arithmetic number, because the mean of its divisors is an integer number (309588400).

Almost surely, 2^1232161633 is an apocalyptic number.

It is an amenable number.

1232161633 is a deficient number, since it is larger than the sum of its proper divisors (6191967).

1232161633 is an equidigital number, since it uses as much as digits as its factorization.

1232161633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191966.

The product of its digits is 3888, while the sum is 28.

The square root of 1232161633 is about 35102.1599477867. The cubic root of 1232161633 is about 1072.0685616583.

Adding to 1232161633 its reverse (3361612321), we get a palindrome (4593773954).

The spelling of 1232161633 in words is "one billion, two hundred thirty-two million, one hundred sixty-one thousand, six hundred thirty-three".