75217161 has 8 divisors (see below), whose sum is σ = 100799424. Its totient is φ = 49889840.

The previous prime is 75217159. The next prime is 75217169. The reversal of 75217161 is 16171257.

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 75217161 - 2¹ = 75217159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75217169) 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, 63045 + ... + 64226.

It is an arithmetic number, because the mean of its divisors is an integer number (12599928).

Almost surely, 2^75217161 is an apocalyptic number.

It is an amenable number.

75217161 is a deficient number, since it is larger than the sum of its proper divisors (25582263).

75217161 is a wasteful number, since it uses less digits than its factorization.

75217161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127471.

The product of its digits is 2940, while the sum is 30.

The square root of 75217161 is about 8672.7827714062. The cubic root of 75217161 is about 422.1229641742.

The spelling of 75217161 in words is "seventy-five million, two hundred seventeen thousand, one hundred sixty-one".