12742545 has 16 divisors (see below), whose sum is σ = 20551680. Its totient is φ = 6741504.

The previous prime is 12742511. The next prime is 12742553. The reversal of 12742545 is 54524721.

12742545 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12742545 - 2⁶ = 12742481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1440 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (1284480).

Almost surely, 2^12742545 is an apocalyptic number.

12742545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12742545 is a deficient number, since it is larger than the sum of its proper divisors (7809135).

12742545 is a wasteful number, since it uses less digits than its factorization.

12742545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6824.

The product of its digits is 11200, while the sum is 30.

The square root of 12742545 is about 3569.6701528292. The cubic root of 12742545 is about 233.5708952390.

The spelling of 12742545 in words is "twelve million, seven hundred forty-two thousand, five hundred forty-five".