75147274 has 4 divisors (see below), whose sum is σ = 112720914. Its totient is φ = 37573636.

The previous prime is 75147271. The next prime is 75147283. The reversal of 75147274 is 47274157.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56355049 + 18792225 = 7507^2 + 4335^2 .

It is a super-3 number, since 3×75147274³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (75147271) by changing a digit.

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 as a sum of consecutive naturals, namely, 18786817 + ... + 18786820.

Almost surely, 2^75147274 is an apocalyptic number.

75147274 is a deficient number, since it is larger than the sum of its proper divisors (37573640).

75147274 is a wasteful number, since it uses less digits than its factorization.

75147274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37573639.

The product of its digits is 54880, while the sum is 37.

The square root of 75147274 is about 8668.7527361207. The cubic root of 75147274 is about 421.9921870629.

The spelling of 75147274 in words is "seventy-five million, one hundred forty-seven thousand, two hundred seventy-four".