111405073 has 8 divisors (see below), whose sum is σ = 120143016. Its totient is φ = 102691200.

The previous prime is 111405061. The next prime is 111405101. The reversal of 111405073 is 370504111.

It can be written as a sum of positive squares in 4 ways, for example, as 3411409 + 107993664 = 1847^2 + 10392^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111405073 - 2¹³ = 111396881 is a prime.

It is a super-2 number, since 2×111405073² = 24822180580270658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111405053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4263 + ... + 15523.

It is an arithmetic number, because the mean of its divisors is an integer number (15017877).

Almost surely, 2^111405073 is an apocalyptic number.

111405073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111405073 is a deficient number, since it is larger than the sum of its proper divisors (8737943).

111405073 is a wasteful number, since it uses less digits than its factorization.

111405073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12035.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 111405073 is about 10554.8601601348. The cubic root of 111405073 is about 481.1734498358.

Adding to 111405073 its reverse (370504111), we get a palindrome (481909184).

The spelling of 111405073 in words is "one hundred eleven million, four hundred five thousand, seventy-three".