75128422 has 8 divisors (see below), whose sum is σ = 112741272. Its totient is φ = 37548000.

The previous prime is 75128411. The next prime is 75128453. The reversal of 75128422 is 22482157.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104 + ... + 12307.

It is an arithmetic number, because the mean of its divisors is an integer number (14092659).

Almost surely, 2^75128422 is an apocalyptic number.

75128422 is a deficient number, since it is larger than the sum of its proper divisors (37612850).

75128422 is a wasteful number, since it uses less digits than its factorization.

75128422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214.

The product of its digits is 8960, while the sum is 31.

The square root of 75128422 is about 8667.6653142585. The cubic root of 75128422 is about 421.9568960863.

The spelling of 75128422 in words is "seventy-five million, one hundred twenty-eight thousand, four hundred twenty-two".