111465545 has 4 divisors (see below), whose sum is σ = 133758660. Its totient is φ = 89172432.

The previous prime is 111465517. The next prime is 111465577. The reversal of 111465545 is 545564111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545564111 = 20347 ⋅26813.

It can be written as a sum of positive squares in 2 ways, for example, as 51681721 + 59783824 = 7189^2 + 7732^2 .

It is a cyclic number.

It is not a de Polignac number, because 111465545 - 2¹⁸ = 111203401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11146550 + ... + 11146559.

It is an arithmetic number, because the mean of its divisors is an integer number (33439665).

Almost surely, 2^111465545 is an apocalyptic number.

It is an amenable number.

111465545 is a deficient number, since it is larger than the sum of its proper divisors (22293115).

111465545 is an equidigital number, since it uses as much as digits as its factorization.

111465545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22293114.

The product of its digits is 12000, while the sum is 32.

The square root of 111465545 is about 10557.7244233784. The cubic root of 111465545 is about 481.2604963135.

The spelling of 111465545 in words is "one hundred eleven million, four hundred sixty-five thousand, five hundred forty-five".