72114861 has 32 divisors (see below), whose sum is σ = 124579840. Its totient is φ = 36033984.

The previous prime is 72114857. The next prime is 72114881. The reversal of 72114861 is 16841127.

It is not a de Polignac number, because 72114861 - 2² = 72114857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72114811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1765 + ... + 12138.

It is an arithmetic number, because the mean of its divisors is an integer number (3893120).

Almost surely, 2^72114861 is an apocalyptic number.

It is an amenable number.

72114861 is a deficient number, since it is larger than the sum of its proper divisors (52464979).

72114861 is a wasteful number, since it uses less digits than its factorization.

72114861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945.

The product of its digits is 2688, while the sum is 30.

The square root of 72114861 is about 8492.0469263894. The cubic root of 72114861 is about 416.2378697689.

Adding to 72114861 its reverse (16841127), we get a palindrome (88955988).

The spelling of 72114861 in words is "seventy-two million, one hundred fourteen thousand, eight hundred sixty-one".