12161433 has 8 divisors (see below), whose sum is σ = 16521408. Its totient is φ = 7954544.

The previous prime is 12161431. The next prime is 12161437. The reversal of 12161433 is 33416121.

12161433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12161433 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12161433 - 2¹ = 12161431 is a prime.

It is a super-2 number, since 2×12161433² = 295800905226978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12161431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38085 + ... + 38402.

It is an arithmetic number, because the mean of its divisors is an integer number (2065176).

Almost surely, 2^12161433 is an apocalyptic number.

It is an amenable number.

12161433 is a deficient number, since it is larger than the sum of its proper divisors (4359975).

12161433 is an equidigital number, since it uses as much as digits as its factorization.

12161433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76543.

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

The square root of 12161433 is about 3487.3246192461. The cubic root of 12161433 is about 229.9649158836.

Adding to 12161433 its reverse (33416121), we get a palindrome (45577554).

The spelling of 12161433 in words is "twelve million, one hundred sixty-one thousand, four hundred thirty-three".