111897053 has 4 divisors (see below), whose sum is σ = 111930720. Its totient is φ = 111863388.

The previous prime is 111897041. The next prime is 111897059. The reversal of 111897053 is 350798111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350798111 = 17 ⋅20635183.

It is a cyclic number.

It is not a de Polignac number, because 111897053 - 2²⁴ = 95119837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111897059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11225 + ... + 18702.

It is an arithmetic number, because the mean of its divisors is an integer number (27982680).

Almost surely, 2^111897053 is an apocalyptic number.

It is an amenable number.

111897053 is a deficient number, since it is larger than the sum of its proper divisors (33667).

111897053 is an equidigital number, since it uses as much as digits as its factorization.

111897053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33666.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 111897053 is about 10578.1403375073. The cubic root of 111897053 is about 481.8807189213.

The spelling of 111897053 in words is "one hundred eleven million, eight hundred ninety-seven thousand, fifty-three".