75465812 has 6 divisors (see below), whose sum is σ = 132065178. Its totient is φ = 37732904.

The previous prime is 75465791. The next prime is 75465821. The reversal of 75465812 is 21856457.

It can be written as a sum of positive squares in only one way, i.e., 39513796 + 35952016 = 6286^2 + 5996^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9433223 + ... + 9433230.

It is an arithmetic number, because the mean of its divisors is an integer number (22010863).

Almost surely, 2^75465812 is an apocalyptic number.

It is an amenable number.

75465812 is a deficient number, since it is larger than the sum of its proper divisors (56599366).

75465812 is a wasteful number, since it uses less digits than its factorization.

75465812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18866457 (or 18866455 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 75465812 is about 8687.1060774000. The cubic root of 75465812 is about 422.5876003833.

It can be divided in two parts, 754 and 65812, that added together give a palindrome (66566).

The spelling of 75465812 in words is "seventy-five million, four hundred sixty-five thousand, eight hundred twelve".