111406009 has 8 divisors (see below), whose sum is σ = 130882752. Its totient is φ = 93487440.

The previous prime is 111405989. The next prime is 111406019. The reversal of 111406009 is 900604111.

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 111406009 - 2⁷ = 111405881 is a prime.

It is a super-2 number, since 2×111406009² = 24822597682616162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111406019) 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, 389389 + ... + 389674.

It is an arithmetic number, because the mean of its divisors is an integer number (16360344).

Almost surely, 2^111406009 is an apocalyptic number.

It is an amenable number.

111406009 is a deficient number, since it is larger than the sum of its proper divisors (19476743).

111406009 is a wasteful number, since it uses less digits than its factorization.

111406009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779087.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 111406009 is about 10554.9044998048. The cubic root of 111406009 is about 481.1747974018.

The spelling of 111406009 in words is "one hundred eleven million, four hundred six thousand, nine".