75120212 has 48 divisors (see below), whose sum is σ = 145267920. Its totient is φ = 33841152.

The previous prime is 75120211. The next prime is 75120259. The reversal of 75120212 is 21202157.

It can be written as a sum of positive squares in 8 ways, for example, as 27730756 + 47389456 = 5266^2 + 6884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75120211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183464 + ... + 183872.

It is an arithmetic number, because the mean of its divisors is an integer number (3026415).

Almost surely, 2^75120212 is an apocalyptic number.

It is an amenable number.

75120212 is a deficient number, since it is larger than the sum of its proper divisors (70147708).

75120212 is a wasteful number, since it uses less digits than its factorization.

75120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 75120212 is about 8667.1917020451. The cubic root of 75120212 is about 421.9415251068.

Adding to 75120212 its reverse (21202157), we get a palindrome (96322369).

The spelling of 75120212 in words is "seventy-five million, one hundred twenty thousand, two hundred twelve".