75242971 has 8 divisors (see below), whose sum is σ = 76129200. Its totient is φ = 74360832.

The previous prime is 75242963. The next prime is 75242977. The reversal of 75242971 is 17924257.

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

It is a cyclic number.

It is not a de Polignac number, because 75242971 - 2³ = 75242963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75242971.

It is not an unprimeable number, because it can be changed into a prime (75242977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49996 + ... + 51478.

It is an arithmetic number, because the mean of its divisors is an integer number (9516150).

Almost surely, 2^75242971 is an apocalyptic number.

75242971 is a deficient number, since it is larger than the sum of its proper divisors (886229).

75242971 is a wasteful number, since it uses less digits than its factorization.

75242971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045.

The product of its digits is 35280, while the sum is 37.

The square root of 75242971 is about 8674.2706321627. The cubic root of 75242971 is about 422.1712410462.

The spelling of 75242971 in words is "seventy-five million, two hundred forty-two thousand, nine hundred seventy-one".