8742520201 has 2 divisors, whose sum is σ = 8742520202. Its totient is φ = 8742520200.

The previous prime is 8742520169. The next prime is 8742520261. The reversal of 8742520201 is 1020252478.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8616294976 + 126225225 = 92824^2 + 11235^2 .

It is a cyclic number.

It is not a de Polignac number, because 8742520201 - 2⁵ = 8742520169 is a prime.

It is not a weakly prime, because it can be changed into another prime (8742520261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4371260100 + 4371260101.

It is an arithmetic number, because the mean of its divisors is an integer number (4371260101).

Almost surely, 2^8742520201 is an apocalyptic number.

It is an amenable number.

8742520201 is a deficient number, since it is larger than the sum of its proper divisors (1).

8742520201 is an equidigital number, since it uses as much as digits as its factorization.

8742520201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 8742520201 is about 93501.4449139691. Note that the first 3 decimals coincide. The cubic root of 8742520201 is about 2060.0553132632.

Adding to 8742520201 its reverse (1020252478), we get a palindrome (9762772679).

The spelling of 8742520201 in words is "eight billion, seven hundred forty-two million, five hundred twenty thousand, two hundred one".