111488401 has 4 divisors (see below), whose sum is σ = 111603492. Its totient is φ = 111373312.

The previous prime is 111488393. The next prime is 111488411. The reversal of 111488401 is 104884111.

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 53363025 + 58125376 = 7305^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 111488401 - 2³ = 111488393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111488401.

It is not an unprimeable number, because it can be changed into a prime (111488411) by changing a digit.

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, 56080 + ... + 58033.

It is an arithmetic number, because the mean of its divisors is an integer number (27900873).

Almost surely, 2^111488401 is an apocalyptic number.

It is an amenable number.

111488401 is a deficient number, since it is larger than the sum of its proper divisors (115091).

111488401 is an equidigital number, since it uses as much as digits as its factorization.

111488401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115090.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 111488401 is about 10558.8067981188. The cubic root of 111488401 is about 481.2933882060.

The spelling of 111488401 in words is "one hundred eleven million, four hundred eighty-eight thousand, four hundred one".