72130183 has 2 divisors, whose sum is σ = 72130184. Its totient is φ = 72130182.

The previous prime is 72130181. The next prime is 72130187. The reversal of 72130183 is 38103127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72130183 - 2¹ = 72130181 is a prime.

It is a super-2 number, since 2×72130183² = 10405526599226978, which contains 22 as substring.

Together with 72130181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72130181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36065091 + 36065092.

It is an arithmetic number, because the mean of its divisors is an integer number (36065092).

Almost surely, 2^72130183 is an apocalyptic number.

72130183 is a deficient number, since it is larger than the sum of its proper divisors (1).

72130183 is an equidigital number, since it uses as much as digits as its factorization.

72130183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 72130183 is about 8492.9490166844. The cubic root of 72130183 is about 416.2673465643.

The spelling of 72130183 in words is "seventy-two million, one hundred thirty thousand, one hundred eighty-three".