111451340 has 192 divisors, whose sum is σ = 331914240. Its totient is φ = 30274560.

The previous prime is 111451309. The next prime is 111451357. The reversal of 111451340 is 43154111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 380234 + ... + 380526.

It is an arithmetic number, because the mean of its divisors is an integer number (1728720).

Almost surely, 2^111451340 is an apocalyptic number.

111451340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111451340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165957120).

111451340 is an abundant number, since it is smaller than the sum of its proper divisors (220462900).

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

111451340 is a wasteful number, since it uses less digits than its factorization.

111451340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 111451340 is about 10557.0516717500. The cubic root of 111451340 is about 481.2400517424.

The spelling of 111451340 in words is "one hundred eleven million, four hundred fifty-one thousand, three hundred forty".