12542193 has 6 divisors (see below), whose sum is σ = 18116514. Its totient is φ = 8361456.

The previous prime is 12542191. The next prime is 12542227. The reversal of 12542193 is 39124521.

It can be written as a sum of positive squares in only one way, i.e., 9345249 + 3196944 = 3057^2 + 1788^2 .

It is not a de Polignac number, because 12542193 - 2¹ = 12542191 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12542191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 696780 + ... + 696797.

It is an arithmetic number, because the mean of its divisors is an integer number (3019419).

Almost surely, 2^12542193 is an apocalyptic number.

It is an amenable number.

12542193 is a deficient number, since it is larger than the sum of its proper divisors (5574321).

12542193 is a wasteful number, since it uses less digits than its factorization.

12542193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393583 (or 1393580 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 12542193 is about 3541.4958703915. The cubic root of 12542193 is about 232.3402718384.

The spelling of 12542193 in words is "twelve million, five hundred forty-two thousand, one hundred ninety-three".