72446201 has 2 divisors, whose sum is σ = 72446202. Its totient is φ = 72446200.

The previous prime is 72446191. The next prime is 72446203. The reversal of 72446201 is 10264427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 15594601 = 7540^2 + 3949^2 .

It is a cyclic number.

It is not a de Polignac number, because 72446201 - 2⁶ = 72446137 is a prime.

Together with 72446203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72446203) 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, 36223100 + 36223101.

It is an arithmetic number, because the mean of its divisors is an integer number (36223101).

Almost surely, 2^72446201 is an apocalyptic number.

It is an amenable number.

72446201 is a deficient number, since it is larger than the sum of its proper divisors (1).

72446201 is an equidigital number, since it uses as much as digits as its factorization.

72446201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 72446201 is about 8511.5334106141. The cubic root of 72446201 is about 416.8743801328.

The spelling of 72446201 in words is "seventy-two million, four hundred forty-six thousand, two hundred one".