12381461 has 4 divisors (see below), whose sum is σ = 12396672. Its totient is φ = 12366252.

The previous prime is 12381451. The next prime is 12381469. The reversal of 12381461 is 16418321.

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: 16418321 = 29 ⋅566149.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12381461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12381461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381469) 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, 6311 + ... + 8036.

It is an arithmetic number, because the mean of its divisors is an integer number (3099168).

Almost surely, 2^12381461 is an apocalyptic number.

It is an amenable number.

12381461 is a deficient number, since it is larger than the sum of its proper divisors (15211).

12381461 is an equidigital number, since it uses as much as digits as its factorization.

12381461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15210.

The product of its digits is 1152, while the sum is 26.

The square root of 12381461 is about 3518.7300265863. The cubic root of 12381461 is about 231.3434980091.

Adding to 12381461 its reverse (16418321), we get a palindrome (28799782).

The spelling of 12381461 in words is "twelve million, three hundred eighty-one thousand, four hundred sixty-one".