13161432 has 16 divisors (see below), whose sum is σ = 32903640. Its totient is φ = 4387136.

The previous prime is 13161431. The next prime is 13161487. The reversal of 13161432 is 23416131.

13161432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13161399 and 13161408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161431) 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, 274173 + ... + 274220.

Almost surely, 2^13161432 is an apocalyptic number.

13161432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13161432 is an abundant number, since it is smaller than the sum of its proper divisors (19742208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13161432 is a wasteful number, since it uses less digits than its factorization.

13161432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548402 (or 548398 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 13161432 is about 3627.8687958635. The cubic root of 13161432 is about 236.1027513882.

Adding to 13161432 its reverse (23416131), we get a palindrome (36577563).

The spelling of 13161432 in words is "thirteen million, one hundred sixty-one thousand, four hundred thirty-two".