75220120 has 32 divisors (see below), whose sum is σ = 176605920. Its totient is φ = 28779520.

The previous prime is 75220111. The next prime is 75220139. The reversal of 75220120 is 2102257.

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 in 7 ways as a sum of consecutive naturals, for example, 39961 + ... + 41800.

It is an arithmetic number, because the mean of its divisors is an integer number (5518935).

Almost surely, 2^75220120 is an apocalyptic number.

It is an amenable number.

75220120 is an abundant number, since it is smaller than the sum of its proper divisors (101385800).

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

75220120 is a wasteful number, since it uses less digits than its factorization.

75220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81795 (or 81791 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 75220120 is about 8672.9533608800. The cubic root of 75220120 is about 422.1284994601.

Adding to 75220120 its reverse (2102257), we get a palindrome (77322377).

The spelling of 75220120 in words is "seventy-five million, two hundred twenty thousand, one hundred twenty".