75311012 has 12 divisors (see below), whose sum is σ = 150622080. Its totient is φ = 32276136.

The previous prime is 75311011. The next prime is 75311063. The reversal of 75311012 is 21011357.

75311012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (75311011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344812 + ... + 1344867.

It is an arithmetic number, because the mean of its divisors is an integer number (12551840).

Almost surely, 2^75311012 is an apocalyptic number.

It is an amenable number.

75311012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

75311012 is a wasteful number, since it uses less digits than its factorization.

75311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689690 (or 2689688 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 75311012 is about 8678.1917471326. The cubic root of 75311012 is about 422.2984569127.

Adding to 75311012 its reverse (21011357), we get a palindrome (96322369).

The spelling of 75311012 in words is "seventy-five million, three hundred eleven thousand, twelve".