111348947 has 4 divisors (see below), whose sum is σ = 114358416. Its totient is φ = 108339480.

The previous prime is 111348889. The next prime is 111348971. The reversal of 111348947 is 749843111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111348947 - 2²⁰ = 110300371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111348947.

It is not an unprimeable number, because it can be changed into a prime (111348977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504679 + ... + 1504752.

It is an arithmetic number, because the mean of its divisors is an integer number (28589604).

Almost surely, 2^111348947 is an apocalyptic number.

111348947 is a deficient number, since it is larger than the sum of its proper divisors (3009469).

111348947 is an equidigital number, since it uses as much as digits as its factorization.

111348947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009468.

The product of its digits is 24192, while the sum is 38.

The square root of 111348947 is about 10552.2010500180. The cubic root of 111348947 is about 481.0926310218.

The spelling of 111348947 in words is "one hundred eleven million, three hundred forty-eight thousand, nine hundred forty-seven".