75143042 has 8 divisors (see below), whose sum is σ = 121384956. Its totient is φ = 34681392.

The previous prime is 75143023. The next prime is 75143051. The reversal of 75143042 is 24034157.

It can be written as a sum of positive squares in 2 ways, for example, as 73290721 + 1852321 = 8561^2 + 1361^2 .

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

It is a super-2 number, since 2×75143042² = 11292953522027528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 2890117 = 75143042 / (7 + 5 + 1 + 4 + 3 + 0 + 4 + 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 in 3 ways as a sum of consecutive naturals, for example, 1445033 + ... + 1445084.

Almost surely, 2^75143042 is an apocalyptic number.

75143042 is a deficient number, since it is larger than the sum of its proper divisors (46241914).

75143042 is a wasteful number, since it uses less digits than its factorization.

75143042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890132.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 75143042 is about 8668.5086375916. The cubic root of 75143042 is about 421.9842652654.

Adding to 75143042 its reverse (24034157), we get a palindrome (99177199).

The spelling of 75143042 in words is "seventy-five million, one hundred forty-three thousand, forty-two".