111745745 has 12 divisors (see below), whose sum is σ = 141526260. Its totient is φ = 84690144.

The previous prime is 111745727. The next prime is 111745747. The reversal of 111745745 is 547547111.

It can be written as a sum of positive squares in 2 ways, for example, as 77721856 + 34023889 = 8816^2 + 5833^2 .

It is not a de Polignac number, because 111745745 - 2⁶ = 111745681 is a prime.

It is a super-2 number, since 2×111745745² = 24974223051210050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111745747) 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 11 ways as a sum of consecutive naturals, for example, 29150 + ... + 32759.

It is an arithmetic number, because the mean of its divisors is an integer number (11793855).

Almost surely, 2^111745745 is an apocalyptic number.

It is an amenable number.

111745745 is a deficient number, since it is larger than the sum of its proper divisors (29780515).

111745745 is an equidigital number, since it uses as much as digits as its factorization.

111745745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61952 (or 61933 counting only the distinct ones).

The product of its digits is 19600, while the sum is 35.

The square root of 111745745 is about 10570.9859994231. The cubic root of 111745745 is about 481.6634200894.

The spelling of 111745745 in words is "one hundred eleven million, seven hundred forty-five thousand, seven hundred forty-five".