75222746 has 4 divisors (see below), whose sum is σ = 112834122. Its totient is φ = 37611372.

The previous prime is 75222743. The next prime is 75222757. The reversal of 75222746 is 64722257.

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., 60668521 + 14554225 = 7789^2 + 3815^2 .

It is not an unprimeable number, because it can be changed into a prime (75222743) by changing a digit.

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 as a sum of consecutive naturals, namely, 18805685 + ... + 18805688.

Almost surely, 2^75222746 is an apocalyptic number.

75222746 is a deficient number, since it is larger than the sum of its proper divisors (37611376).

75222746 is a wasteful number, since it uses less digits than its factorization.

75222746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37611375.

The product of its digits is 47040, while the sum is 35.

The square root of 75222746 is about 8673.1047497422. The cubic root of 75222746 is about 422.1334116943.

The spelling of 75222746 in words is "seventy-five million, two hundred twenty-two thousand, seven hundred forty-six".