75423142 has 16 divisors (see below), whose sum is σ = 117547200. Its totient is φ = 36252160.

The previous prime is 75423137. The next prime is 75423143. The reversal of 75423142 is 24132457.

It is a self number, because there is not a number n which added to its sum of digits gives 75423142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75423143) 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 in 7 ways as a sum of consecutive naturals, for example, 11142 + ... + 16582.

It is an arithmetic number, because the mean of its divisors is an integer number (7346700).

Almost surely, 2^75423142 is an apocalyptic number.

75423142 is a deficient number, since it is larger than the sum of its proper divisors (42124058).

75423142 is a wasteful number, since it uses less digits than its factorization.

75423142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711.

The product of its digits is 6720, while the sum is 28.

The square root of 75423142 is about 8684.6497914424. The cubic root of 75423142 is about 422.5079386485.

Adding to 75423142 its reverse (24132457), we get a palindrome (99555599).

The spelling of 75423142 in words is "seventy-five million, four hundred twenty-three thousand, one hundred forty-two".