72116741 has 2 divisors, whose sum is σ = 72116742. Its totient is φ = 72116740.

The previous prime is 72116711. The next prime is 72116783. The reversal of 72116741 is 14761127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63266116 + 8850625 = 7954^2 + 2975^2 .

It is a cyclic number.

It is not a de Polignac number, because 72116741 - 2⁶ = 72116677 is a prime.

It is a super-2 number, since 2×72116741² = 10401648664922162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72116711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36058370 + 36058371.

It is an arithmetic number, because the mean of its divisors is an integer number (36058371).

Almost surely, 2^72116741 is an apocalyptic number.

It is an amenable number.

72116741 is a deficient number, since it is larger than the sum of its proper divisors (1).

72116741 is an equidigital number, since it uses as much as digits as its factorization.

72116741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 72116741 is about 8492.1576174727. The cubic root of 72116741 is about 416.2414867783.

Adding to 72116741 its reverse (14761127), we get a palindrome (86877868).

The spelling of 72116741 in words is "seventy-two million, one hundred sixteen thousand, seven hundred forty-one".