163432433 has 4 divisors (see below), whose sum is σ = 172034160. Its totient is φ = 154830708.

The previous prime is 163432427. The next prime is 163432499. The reversal of 163432433 is 334234361.

It is a happy number.

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: 334234361 = 251 ⋅1331611.

It is a cyclic number.

It is not a de Polignac number, because 163432433 - 2⁴ = 163432417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163432396 and 163432405.

It is not an unprimeable number, because it can be changed into a prime (163432333) 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, 4300835 + ... + 4300872.

It is an arithmetic number, because the mean of its divisors is an integer number (43008540).

Almost surely, 2^163432433 is an apocalyptic number.

It is an amenable number.

163432433 is a deficient number, since it is larger than the sum of its proper divisors (8601727).

163432433 is an equidigital number, since it uses as much as digits as its factorization.

163432433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601726.

The product of its digits is 15552, while the sum is 29.

The square root of 163432433 is about 12784.0695007498. The cubic root of 163432433 is about 546.7381958670.

Adding to 163432433 its reverse (334234361), we get a palindrome (497666794).

The spelling of 163432433 in words is "one hundred sixty-three million, four hundred thirty-two thousand, four hundred thirty-three".