72146807 has 2 divisors, whose sum is σ = 72146808. Its totient is φ = 72146806.

The previous prime is 72146777. The next prime is 72146869. The reversal of 72146807 is 70864127.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72146807 - 2¹⁰ = 72145783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72146887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36073403 + 36073404.

It is an arithmetic number, because the mean of its divisors is an integer number (36073404).

Almost surely, 2^72146807 is an apocalyptic number.

72146807 is a deficient number, since it is larger than the sum of its proper divisors (1).

72146807 is an equidigital number, since it uses as much as digits as its factorization.

72146807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 72146807 is about 8493.9276545071. The cubic root of 72146807 is about 416.2993234545.

The spelling of 72146807 in words is "seventy-two million, one hundred forty-six thousand, eight hundred seven".