12461405 has 8 divisors (see below), whose sum is σ = 16313184. Its totient is φ = 9062800.

The previous prime is 12461401. The next prime is 12461419. The reversal of 12461405 is 50416421.

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

It is not a de Polignac number, because 12461405 - 2² = 12461401 is a prime.

It is a super-2 number, since 2×12461405² = 310573229148050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12461401) 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, 113231 + ... + 113340.

It is an arithmetic number, because the mean of its divisors is an integer number (2039148).

Almost surely, 2^12461405 is an apocalyptic number.

It is an amenable number.

12461405 is a deficient number, since it is larger than the sum of its proper divisors (3851779).

12461405 is a wasteful number, since it uses less digits than its factorization.

12461405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226587.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12461405 is about 3530.0715290203. The cubic root of 12461405 is about 231.8403392659.

Adding to 12461405 its reverse (50416421), we get a palindrome (62877826).

The spelling of 12461405 in words is "twelve million, four hundred sixty-one thousand, four hundred five".