12545638 has 32 divisors (see below), whose sum is σ = 22468608. Its totient is φ = 5140800.

The previous prime is 12545633. The next prime is 12545641. The reversal of 12545638 is 83654521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545633) 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, 59353 + ... + 59563.

It is an arithmetic number, because the mean of its divisors is an integer number (702144).

Almost surely, 2^12545638 is an apocalyptic number.

12545638 is a deficient number, since it is larger than the sum of its proper divisors (9922970).

12545638 is a wasteful number, since it uses less digits than its factorization.

12545638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its digits is 28800, while the sum is 34.

The square root of 12545638 is about 3541.9822133941. The cubic root of 12545638 is about 232.3615424132.

The spelling of 12545638 in words is "twelve million, five hundred forty-five thousand, six hundred thirty-eight".