12542621 has 8 divisors (see below), whose sum is σ = 15437184. Its totient is φ = 9923760.

The previous prime is 12542611. The next prime is 12542639. The reversal of 12542621 is 12624521.

It is a happy number.

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

It is not a de Polignac number, because 12542621 - 2⁶ = 12542557 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542611) 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, 68825 + ... + 69006.

It is an arithmetic number, because the mean of its divisors is an integer number (1929648).

Almost surely, 2^12542621 is an apocalyptic number.

It is an amenable number.

12542621 is a deficient number, since it is larger than the sum of its proper divisors (2894563).

12542621 is a wasteful number, since it uses less digits than its factorization.

12542621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137851.

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

The square root of 12542621 is about 3541.5562963195. The cubic root of 12542621 is about 232.3429146645.

The spelling of 12542621 in words is "twelve million, five hundred forty-two thousand, six hundred twenty-one".