12542938 has 8 divisors (see below), whose sum is σ = 18918900. Its totient is φ = 6236640.

The previous prime is 12542921. The next prime is 12542939. The reversal of 12542938 is 83924521.

It can be written as a sum of positive squares in 2 ways, for example, as 9504889 + 3038049 = 3083^2 + 1743^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12542939) 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, 16963 + ... + 17686.

Almost surely, 2^12542938 is an apocalyptic number.

12542938 is a deficient number, since it is larger than the sum of its proper divisors (6375962).

12542938 is a wasteful number, since it uses less digits than its factorization.

12542938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34832.

The product of its digits is 17280, while the sum is 34.

The square root of 12542938 is about 3541.6010503726. The cubic root of 12542938 is about 232.3448720460.

The spelling of 12542938 in words is "twelve million, five hundred forty-two thousand, nine hundred thirty-eight".