755321112 has 160 divisors (see below), whose sum is σ = 2604016800. Its totient is φ = 199190016.

The previous prime is 755321111. The next prime is 755321137. The reversal of 755321112 is 211123557.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755321111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52564 + ... + 65372.

It is an arithmetic number, because the mean of its divisors is an integer number (16275105).

Almost surely, 2^755321112 is an apocalyptic number.

755321112 is a gapful number since it is divisible by the number (72) 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 755321112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302008400).

755321112 is an abundant number, since it is smaller than the sum of its proper divisors (1848695688).

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

755321112 is a wasteful number, since it uses less digits than its factorization.

755321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12847 (or 12834 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 755321112 is about 27483.1059380122. The cubic root of 755321112 is about 910.7039242084.

Adding to 755321112 its reverse (211123557), we get a palindrome (966444669).

The spelling of 755321112 in words is "seven hundred fifty-five million, three hundred twenty-one thousand, one hundred twelve".