72230701 has 2 divisors, whose sum is σ = 72230702. Its totient is φ = 72230700.

The previous prime is 72230693. The next prime is 72230731. The reversal of 72230701 is 10703227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36542025 + 35688676 = 6045^2 + 5974^2 .

It is an emirp because it is prime and its reverse (10703227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72230701 - 2³ = 72230693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72230731) 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, 36115350 + 36115351.

It is an arithmetic number, because the mean of its divisors is an integer number (36115351).

Almost surely, 2^72230701 is an apocalyptic number.

It is an amenable number.

72230701 is a deficient number, since it is larger than the sum of its proper divisors (1).

72230701 is an equidigital number, since it uses as much as digits as its factorization.

72230701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 72230701 is about 8498.8646888864. The cubic root of 72230701 is about 416.4606218238.

Adding to 72230701 its reverse (10703227), we get a palindrome (82933928).

It can be divided in two parts, 722 and 30701, that multiplied together give a palindrome (22166122).

The spelling of 72230701 in words is "seventy-two million, two hundred thirty thousand, seven hundred one".