12750194 has 4 divisors (see below), whose sum is σ = 19125294. Its totient is φ = 6375096.

The previous prime is 12750193. The next prime is 12750209. The reversal of 12750194 is 49105721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12694969 + 55225 = 3563^2 + 235^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12750191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3187547 + ... + 3187550.

Almost surely, 2^12750194 is an apocalyptic number.

12750194 is a deficient number, since it is larger than the sum of its proper divisors (6375100).

12750194 is an equidigital number, since it uses as much as digits as its factorization.

12750194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375099.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 12750194 is about 3570.7413796017. The cubic root of 12750194 is about 233.6176212899.

The spelling of 12750194 in words is "twelve million, seven hundred fifty thousand, one hundred ninety-four".