12772499 has 4 divisors (see below), whose sum is σ = 13212960. Its totient is φ = 12332040.

The previous prime is 12772493. The next prime is 12772519. The reversal of 12772499 is 99427721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99427721 = 1933 ⋅51437.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12772499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12772493) 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 in 3 ways as a sum of consecutive naturals, for example, 220187 + ... + 220244.

It is an arithmetic number, because the mean of its divisors is an integer number (3303240).

Almost surely, 2^12772499 is an apocalyptic number.

12772499 is a deficient number, since it is larger than the sum of its proper divisors (440461).

12772499 is an equidigital number, since it uses as much as digits as its factorization.

12772499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440460.

The product of its digits is 63504, while the sum is 41.

The square root of 12772499 is about 3573.8633157971. The cubic root of 12772499 is about 233.7537709935.

The spelling of 12772499 in words is "twelve million, seven hundred seventy-two thousand, four hundred ninety-nine".