111506397 has 8 divisors (see below), whose sum is σ = 148729056. Its totient is φ = 74310672.

The previous prime is 111506393. The next prime is 111506399. The reversal of 111506397 is 793605111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111506397 - 2² = 111506393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111506393) 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 7 ways as a sum of consecutive naturals, for example, 6838 + ... + 16424.

It is an arithmetic number, because the mean of its divisors is an integer number (18591132).

Almost surely, 2^111506397 is an apocalyptic number.

It is an amenable number.

111506397 is a deficient number, since it is larger than the sum of its proper divisors (37222659).

111506397 is an equidigital number, since it uses as much as digits as its factorization.

111506397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 111506397 is about 10559.6589433561. The cubic root of 111506397 is about 481.3192829470.

The spelling of 111506397 in words is "one hundred eleven million, five hundred six thousand, three hundred ninety-seven".