72230201 has 2 divisors, whose sum is σ = 72230202. Its totient is φ = 72230200.

The previous prime is 72230141. The next prime is 72230209. The reversal of 72230201 is 10203227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69288976 + 2941225 = 8324^2 + 1715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72230201 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72230201.

It is not a weakly prime, because it can be changed into another prime (72230209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36115100 + 36115101.

It is an arithmetic number, because the mean of its divisors is an integer number (36115101).

Almost surely, 2^72230201 is an apocalyptic number.

It is an amenable number.

72230201 is a deficient number, since it is larger than the sum of its proper divisors (1).

72230201 is an equidigital number, since it uses as much as digits as its factorization.

72230201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 72230201 is about 8498.8352731418. The cubic root of 72230201 is about 416.4596608715.

Adding to 72230201 its reverse (10203227), we get a palindrome (82433428).

The spelling of 72230201 in words is "seventy-two million, two hundred thirty thousand, two hundred one".