12922541 has 4 divisors (see below), whose sum is σ = 12940284. Its totient is φ = 12904800.

The previous prime is 12922537. The next prime is 12922543. The reversal of 12922541 is 14522921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5900041 + 7022500 = 2429^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 12922541 - 2² = 12922537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12922541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7730 + ... + 9251.

It is an arithmetic number, because the mean of its divisors is an integer number (3235071).

Almost surely, 2^12922541 is an apocalyptic number.

It is an amenable number.

12922541 is a deficient number, since it is larger than the sum of its proper divisors (17743).

12922541 is an equidigital number, since it uses as much as digits as its factorization.

12922541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17742.

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

The square root of 12922541 is about 3594.7935963001. The cubic root of 12922541 is about 234.6655329430.

The spelling of 12922541 in words is "twelve million, nine hundred twenty-two thousand, five hundred forty-one".