111344447 has 2 divisors, whose sum is σ = 111344448. Its totient is φ = 111344446.

The previous prime is 111344413. The next prime is 111344533. The reversal of 111344447 is 744443111.

It is a weak prime.

It is an emirp because it is prime and its reverse (744443111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111344447 - 2⁶ = 111344383 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111344347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55672223 + 55672224.

It is an arithmetic number, because the mean of its divisors is an integer number (55672224).

Almost surely, 2^111344447 is an apocalyptic number.

111344447 is a deficient number, since it is larger than the sum of its proper divisors (1).

111344447 is an equidigital number, since it uses as much as digits as its factorization.

111344447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 111344447 is about 10551.9878222068. The cubic root of 111344447 is about 481.0861500565.

Adding to 111344447 its reverse (744443111), we get a palindrome (855787558).

The spelling of 111344447 in words is "one hundred eleven million, three hundred forty-four thousand, four hundred forty-seven".