12542511 has 4 divisors (see below), whose sum is σ = 16723352. Its totient is φ = 8361672.

The previous prime is 12542479. The next prime is 12542539. The reversal of 12542511 is 11524521.

12542511 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12542511 - 2⁵ = 12542479 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 (12542591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090416 + ... + 2090421.

It is an arithmetic number, because the mean of its divisors is an integer number (4180838).

Almost surely, 2^12542511 is an apocalyptic number.

12542511 is a deficient number, since it is larger than the sum of its proper divisors (4180841).

12542511 is an equidigital number, since it uses as much as digits as its factorization.

12542511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180840.

The product of its digits is 400, while the sum is 21.

The square root of 12542511 is about 3541.5407663897. The cubic root of 12542511 is about 232.3422354393.

The spelling of 12542511 in words is "twelve million, five hundred forty-two thousand, five hundred eleven".