75121474 has 8 divisors (see below), whose sum is σ = 114040080. Its totient is φ = 37108116.

The previous prime is 75121469. The next prime is 75121481. The reversal of 75121474 is 47412157.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226104 + ... + 226435.

It is an arithmetic number, because the mean of its divisors is an integer number (14255010).

Almost surely, 2^75121474 is an apocalyptic number.

75121474 is a deficient number, since it is larger than the sum of its proper divisors (38918606).

75121474 is a wasteful number, since it uses less digits than its factorization.

75121474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452624.

The product of its digits is 7840, while the sum is 31.

The square root of 75121474 is about 8667.2645050212. The cubic root of 75121474 is about 421.9438879295.

The spelling of 75121474 in words is "seventy-five million, one hundred twenty-one thousand, four hundred seventy-four".