12161450 has 24 divisors (see below), whose sum is σ = 25852512. Its totient is φ = 4169520.

The previous prime is 12161449. The next prime is 12161453. The reversal of 12161450 is 5416121.

12161450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12161450² = 295801732205000, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12161453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17024 + ... + 17723.

It is an arithmetic number, because the mean of its divisors is an integer number (1077188).

Almost surely, 2^12161450 is an apocalyptic number.

12161450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12161450 is an abundant number, since it is smaller than the sum of its proper divisors (13691062).

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

12161450 is a wasteful number, since it uses less digits than its factorization.

12161450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34766 (or 34761 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12161450 is about 3487.3270566438. The cubic root of 12161450 is about 229.9650230366.

Adding to 12161450 its reverse (5416121), we get a palindrome (17577571).

The spelling of 12161450 in words is "twelve million, one hundred sixty-one thousand, four hundred fifty".