72114161 has 8 divisors (see below), whose sum is σ = 82777920. Its totient is φ = 61540848.

The previous prime is 72114157. The next prime is 72114167. The reversal of 72114161 is 16141127.

It is a happy number.

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 72114161 - 2² = 72114157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72114167) 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, 20891 + ... + 24096.

It is an arithmetic number, because the mean of its divisors is an integer number (10347240).

Almost surely, 2^72114161 is an apocalyptic number.

It is an amenable number.

72114161 is a deficient number, since it is larger than the sum of its proper divisors (10663759).

72114161 is a wasteful number, since it uses less digits than its factorization.

72114161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45223.

The product of its digits is 336, while the sum is 23.

The square root of 72114161 is about 8492.0057112557. The cubic root of 72114161 is about 416.2365229940.

Adding to 72114161 its reverse (16141127), we get a palindrome (88255288).

The spelling of 72114161 in words is "seventy-two million, one hundred fourteen thousand, one hundred sixty-one".