12981541 has 8 divisors (see below), whose sum is σ = 13956480. Its totient is φ = 12035808.

The previous prime is 12981539. The next prime is 12981581. The reversal of 12981541 is 14518921.

It is a happy number.

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 12981541 - 2¹ = 12981539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12981511) 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, 6376 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (1744560).

Almost surely, 2^12981541 is an apocalyptic number.

It is an amenable number.

12981541 is a deficient number, since it is larger than the sum of its proper divisors (974939).

12981541 is a wasteful number, since it uses less digits than its factorization.

12981541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14603.

The product of its digits is 2880, while the sum is 31.

The square root of 12981541 is about 3602.9905634070. The cubic root of 12981541 is about 235.0221255764.

The spelling of 12981541 in words is "twelve million, nine hundred eighty-one thousand, five hundred forty-one".