12397541 has 8 divisors (see below), whose sum is σ = 13450584. Its totient is φ = 11358720.

The previous prime is 12397537. The next prime is 12397547. The reversal of 12397541 is 14579321.

It can be written as a sum of positive squares in 4 ways, for example, as 1809025 + 10588516 = 1345^2 + 3254^2 .

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 12397541 - 2² = 12397537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12397498 and 12397507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12397547) 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, 1700 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (1681323).

Almost surely, 2^12397541 is an apocalyptic number.

It is an amenable number.

12397541 is a deficient number, since it is larger than the sum of its proper divisors (1053043).

12397541 is a wasteful number, since it uses less digits than its factorization.

12397541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111.

The product of its digits is 7560, while the sum is 32.

The square root of 12397541 is about 3521.0142004826. The cubic root of 12397541 is about 231.4436045097.

The spelling of 12397541 in words is "twelve million, three hundred ninety-seven thousand, five hundred forty-one".