111455413 has 4 divisors (see below), whose sum is σ = 111500620. Its totient is φ = 111410208.

The previous prime is 111455341. The next prime is 111455431. The reversal of 111455413 is 314554111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314554111 = 17 ⋅18503183.

It can be written as a sum of positive squares in 2 ways, for example, as 67272804 + 44182609 = 8202^2 + 6647^2 .

It is a cyclic number.

It is not a de Polignac number, because 111455413 - 2⁹ = 111454901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111455473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18678 + ... + 23911.

It is an arithmetic number, because the mean of its divisors is an integer number (27875155).

Almost surely, 2^111455413 is an apocalyptic number.

It is an amenable number.

111455413 is a deficient number, since it is larger than the sum of its proper divisors (45207).

111455413 is an equidigital number, since it uses as much as digits as its factorization.

111455413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45206.

The product of its digits is 1200, while the sum is 25.

The square root of 111455413 is about 10557.2445742248. The cubic root of 111455413 is about 481.2459139924.

The spelling of 111455413 in words is "one hundred eleven million, four hundred fifty-five thousand, four hundred thirteen".