111947663 has 2 divisors, whose sum is σ = 111947664. Its totient is φ = 111947662.

The previous prime is 111947659. The next prime is 111947701. The reversal of 111947663 is 366749111.

It is a happy number.

It is an a-pointer prime, because the next prime (111947701) can be obtained adding 111947663 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (366749111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111947663 - 2² = 111947659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111947653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55973831 + 55973832.

It is an arithmetic number, because the mean of its divisors is an integer number (55973832).

Almost surely, 2^111947663 is an apocalyptic number.

111947663 is a deficient number, since it is larger than the sum of its proper divisors (1).

111947663 is an equidigital number, since it uses as much as digits as its factorization.

111947663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 111947663 is about 10580.5322644941. The cubic root of 111947663 is about 481.9533580321.

The spelling of 111947663 in words is "one hundred eleven million, nine hundred forty-seven thousand, six hundred sixty-three".