75331312 has 40 divisors (see below), whose sum is σ = 167596416. Its totient is φ = 32131776.

The previous prime is 75331307. The next prime is 75331327. The reversal of 75331312 is 21313357.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23943 + ... + 26905.

Almost surely, 2^75331312 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 75331312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83798208).

75331312 is an abundant number, since it is smaller than the sum of its proper divisors (92265104).

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

75331312 is a wasteful number, since it uses less digits than its factorization.

75331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3199 counting only the distinct ones).

The product of its digits is 1890, while the sum is 25.

The square root of 75331312 is about 8679.3612668214. The cubic root of 75331312 is about 422.3363968647.

Adding to 75331312 its reverse (21313357), we get a palindrome (96644669).

The spelling of 75331312 in words is "seventy-five million, three hundred thirty-one thousand, three hundred twelve".