111450545 has 4 divisors (see below), whose sum is σ = 133740660. Its totient is φ = 89160432.

The previous prime is 111450503. The next prime is 111450551. The reversal of 111450545 is 545054111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66520336 + 44930209 = 8156^2 + 6703^2 .

It is a cyclic number.

It is not a de Polignac number, because 111450545 - 2¹⁸ = 111188401 is a prime.

It is an unprimeable number.

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, 11145050 + ... + 11145059.

It is an arithmetic number, because the mean of its divisors is an integer number (33435165).

Almost surely, 2^111450545 is an apocalyptic number.

It is an amenable number.

111450545 is a deficient number, since it is larger than the sum of its proper divisors (22290115).

111450545 is an equidigital number, since it uses as much as digits as its factorization.

111450545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22290114.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 111450545 is about 10557.0140191249. The cubic root of 111450545 is about 481.2389074859.

The spelling of 111450545 in words is "one hundred eleven million, four hundred fifty thousand, five hundred forty-five".