12546457 has 16 divisors (see below), whose sum is σ = 15777792. Its totient is φ = 9691920.

The previous prime is 12546433. The next prime is 12546461. The reversal of 12546457 is 75464521.

It is not a de Polignac number, because 12546457 - 2¹¹ = 12544409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12546427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9138 + ... + 10420.

It is an arithmetic number, because the mean of its divisors is an integer number (986112).

Almost surely, 2^12546457 is an apocalyptic number.

It is an amenable number.

12546457 is a deficient number, since it is larger than the sum of its proper divisors (3231335).

12546457 is a wasteful number, since it uses less digits than its factorization.

12546457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its digits is 33600, while the sum is 34.

The square root of 12546457 is about 3542.0978247361. The cubic root of 12546457 is about 232.3665986185.

It can be divided in two parts, 125464 and 57, that added together give a palindrome (125521).

The spelling of 12546457 in words is "twelve million, five hundred forty-six thousand, four hundred fifty-seven".