75111242 has 4 divisors (see below), whose sum is σ = 112666866. Its totient is φ = 37555620.

The previous prime is 75111203. The next prime is 75111251. The reversal of 75111242 is 24211157.

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., 74839801 + 271441 = 8651^2 + 521^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18777809 + ... + 18777812.

Almost surely, 2^75111242 is an apocalyptic number.

75111242 is a deficient number, since it is larger than the sum of its proper divisors (37555624).

75111242 is a wasteful number, since it uses less digits than its factorization.

75111242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37555623.

The product of its digits is 560, while the sum is 23.

The square root of 75111242 is about 8666.6742179454. The cubic root of 75111242 is about 421.9247299548.

Adding to 75111242 its reverse (24211157), we get a palindrome (99322399).

The spelling of 75111242 in words is "seventy-five million, one hundred eleven thousand, two hundred forty-two".