111402606 has 16 divisors (see below), whose sum is σ = 254634624. Its totient is φ = 31829304.

The previous prime is 111402587. The next prime is 111402631. The reversal of 111402606 is 606204111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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, 1326180 + ... + 1326263.

It is an arithmetic number, because the mean of its divisors is an integer number (15914664).

Almost surely, 2^111402606 is an apocalyptic number.

111402606 is an abundant number, since it is smaller than the sum of its proper divisors (143232018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111402606 is a wasteful number, since it uses less digits than its factorization.

111402606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652455.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 111402606 is about 10554.7432938940. The cubic root of 111402606 is about 481.1698980416.

Adding to 111402606 its reverse (606204111), we get a palindrome (717606717).

The spelling of 111402606 in words is "one hundred eleven million, four hundred two thousand, six hundred six".