111612340 has 48 divisors (see below), whose sum is σ = 268474752. Its totient is φ = 38180736.

The previous prime is 111612337. The next prime is 111612343. The reversal of 111612340 is 43216111.

It is an interprime number because it is at equal distance from previous prime (111612337) and next prime (111612343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111612343) 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 15 ways as a sum of consecutive naturals, for example, 109674 + ... + 110686.

It is an arithmetic number, because the mean of its divisors is an integer number (5593224).

Almost surely, 2^111612340 is an apocalyptic number.

111612340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111612340 is an abundant number, since it is smaller than the sum of its proper divisors (156862412).

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

111612340 is a wasteful number, since it uses less digits than its factorization.

111612340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 111612340 is about 10564.6741549373. The cubic root of 111612340 is about 481.4716696240.

Adding to 111612340 its reverse (43216111), we get a palindrome (154828451).

It can be divided in two parts, 1116 and 12340, that added together give a square (13456 = 116²).

The spelling of 111612340 in words is "one hundred eleven million, six hundred twelve thousand, three hundred forty".