75120478 has 8 divisors (see below), whose sum is σ = 114038568. Its totient is φ = 37107624.

The previous prime is 75120457. The next prime is 75120503. The reversal of 75120478 is 87402157.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226101 + ... + 226432.

It is an arithmetic number, because the mean of its divisors is an integer number (14254821).

Almost surely, 2^75120478 is an apocalyptic number.

75120478 is a deficient number, since it is larger than the sum of its proper divisors (38918090).

75120478 is a wasteful number, since it uses less digits than its factorization.

75120478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452618.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 75120478 is about 8667.2070472558. The cubic root of 75120478 is about 421.9420231366.

The spelling of 75120478 in words is "seventy-five million, one hundred twenty thousand, four hundred seventy-eight".