75320112 has 80 divisors (see below), whose sum is σ = 224763392. Its totient is φ = 21288960.

The previous prime is 75320099. The next prime is 75320117. The reversal of 75320112 is 21102357.

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

It is not an unprimeable number, because it can be changed into a prime (75320117) 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, 31437 + ... + 33747.

Almost surely, 2^75320112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112381696).

75320112 is an abundant number, since it is smaller than the sum of its proper divisors (149443280).

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

75320112 is a wasteful number, since it uses less digits than its factorization.

75320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 75320112 is about 8678.7160340686. The cubic root of 75320112 is about 422.3154653204.

Adding to 75320112 its reverse (21102357), we get a palindrome (96422469).

The spelling of 75320112 in words is "seventy-five million, three hundred twenty thousand, one hundred twelve".