111849967 has 2 divisors, whose sum is σ = 111849968. Its totient is φ = 111849966.

The previous prime is 111849961. The next prime is 111849971. The reversal of 111849967 is 769948111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111849967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111849961) 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 as a sum of consecutive naturals, namely, 55924983 + 55924984.

It is an arithmetic number, because the mean of its divisors is an integer number (55924984).

Almost surely, 2^111849967 is an apocalyptic number.

111849967 is a deficient number, since it is larger than the sum of its proper divisors (1).

111849967 is an equidigital number, since it uses as much as digits as its factorization.

111849967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 46.

The square root of 111849967 is about 10575.9144758267. The cubic root of 111849967 is about 481.8131180380.

The spelling of 111849967 in words is "one hundred eleven million, eight hundred forty-nine thousand, nine hundred sixty-seven".