12750819 has 8 divisors (see below), whose sum is σ = 17240832. Its totient is φ = 8380680.

The previous prime is 12750811. The next prime is 12750823. The reversal of 12750819 is 91805721.

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

It is not a de Polignac number, because 12750819 - 2³ = 12750811 is a prime.

It is a super-2 number, since 2×12750819² = 325166770341522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12750819.

It is not an unprimeable number, because it can be changed into a prime (12750811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29719 + ... + 30144.

It is an arithmetic number, because the mean of its divisors is an integer number (2155104).

Almost surely, 2^12750819 is an apocalyptic number.

12750819 is a deficient number, since it is larger than the sum of its proper divisors (4490013).

12750819 is an equidigital number, since it uses as much as digits as its factorization.

12750819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59937.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12750819 is about 3570.8288953687. The cubic root of 12750819 is about 233.6214384508.

The spelling of 12750819 in words is "twelve million, seven hundred fifty thousand, eight hundred nineteen".