12561461 has 8 divisors (see below), whose sum is σ = 14022624. Its totient is φ = 11153520.

The previous prime is 12561431. The next prime is 12561481. The reversal of 12561461 is 16416521.

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 12561461 - 2⁶ = 12561397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12561461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12561401) 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, 12806 + ... + 13751.

It is an arithmetic number, because the mean of its divisors is an integer number (1752828).

Almost surely, 2^12561461 is an apocalyptic number.

12561461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12561461 is a deficient number, since it is larger than the sum of its proper divisors (1461163).

12561461 is a wasteful number, since it uses less digits than its factorization.

12561461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26611.

The product of its digits is 1440, while the sum is 26.

The square root of 12561461 is about 3544.2151458398. The cubic root of 12561461 is about 232.4591888903.

Adding to 12561461 its reverse (16416521), we get a palindrome (28977982).

The spelling of 12561461 in words is "twelve million, five hundred sixty-one thousand, four hundred sixty-one".