75390161 has 8 divisors (see below), whose sum is σ = 93993024. Its totient is φ = 58745520.

The previous prime is 75390131. The next prime is 75390163. The reversal of 75390161 is 16109357.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75390161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75390163) 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, 489470 + ... + 489623.

It is an arithmetic number, because the mean of its divisors is an integer number (11749128).

Almost surely, 2^75390161 is an apocalyptic number.

It is an amenable number.

75390161 is a deficient number, since it is larger than the sum of its proper divisors (18602863).

75390161 is a wasteful number, since it uses less digits than its factorization.

75390161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979111.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 75390161 is about 8682.7507738043. The cubic root of 75390161 is about 422.4463449715.

The spelling of 75390161 in words is "seventy-five million, three hundred ninety thousand, one hundred sixty-one".