112779449 has 2 divisors, whose sum is σ = 112779450. Its totient is φ = 112779448.

The previous prime is 112779437. The next prime is 112779451. The reversal of 112779449 is 944977211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86359849 + 26419600 = 9293^2 + 5140^2 .

It is an emirp because it is prime and its reverse (944977211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112779449 - 2¹² = 112775353 is a prime.

Together with 112779451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112779049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56389724 + 56389725.

It is an arithmetic number, because the mean of its divisors is an integer number (56389725).

Almost surely, 2^112779449 is an apocalyptic number.

It is an amenable number.

112779449 is a deficient number, since it is larger than the sum of its proper divisors (1).

112779449 is an equidigital number, since it uses as much as digits as its factorization.

112779449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The square root of 112779449 is about 10619.7668995134. The cubic root of 112779449 is about 483.1440729740.

The spelling of 112779449 in words is "one hundred twelve million, seven hundred seventy-nine thousand, four hundred forty-nine".