111455361 has 6 divisors (see below), whose sum is σ = 160991090. Its totient is φ = 74303568.

The previous prime is 111455341. The next prime is 111455431. The reversal of 111455361 is 163554111.

It can be written as a sum of positive squares in only one way, i.e., 108993600 + 2461761 = 10440^2 + 1569^2 .

It is not a de Polignac number, because 111455361 - 2⁵ = 111455329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111455341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6191956 + ... + 6191973.

Almost surely, 2^111455361 is an apocalyptic number.

It is an amenable number.

111455361 is a deficient number, since it is larger than the sum of its proper divisors (49535729).

111455361 is a wasteful number, since it uses less digits than its factorization.

111455361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383935 (or 12383932 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 111455361 is about 10557.2421114607. The cubic root of 111455361 is about 481.2458391499.

The spelling of 111455361 in words is "one hundred eleven million, four hundred fifty-five thousand, three hundred sixty-one".