75042706 has 4 divisors (see below), whose sum is σ = 112564062. Its totient is φ = 37521352.

The previous prime is 75042683. The next prime is 75042713. The reversal of 75042706 is 60724057.

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., 56475225 + 18567481 = 7515^2 + 4309^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 18760675 + ... + 18760678.

Almost surely, 2^75042706 is an apocalyptic number.

75042706 is a deficient number, since it is larger than the sum of its proper divisors (37521356).

75042706 is a wasteful number, since it uses less digits than its factorization.

75042706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37521355.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 75042706 is about 8662.7193190129. The cubic root of 75042706 is about 421.7963610973.

The spelling of 75042706 in words is "seventy-five million, forty-two thousand, seven hundred six".