12497279 has 4 divisors (see below), whose sum is σ = 12614184. Its totient is φ = 12380376.

The previous prime is 12497273. The next prime is 12497281. The reversal of 12497279 is 97279421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97279421 = 131 ⋅742591.

It is a cyclic number.

It is not a de Polignac number, because 12497279 - 2⁴ = 12497263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12497273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58292 + ... + 58505.

It is an arithmetic number, because the mean of its divisors is an integer number (3153546).

Almost surely, 2^12497279 is an apocalyptic number.

12497279 is a deficient number, since it is larger than the sum of its proper divisors (116905).

12497279 is a wasteful number, since it uses less digits than its factorization.

12497279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116904.

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

The square root of 12497279 is about 3535.1490774789. The cubic root of 12497279 is about 232.0626007743.

The spelling of 12497279 in words is "twelve million, four hundred ninety-seven thousand, two hundred seventy-nine".