7201157641 has 2 divisors, whose sum is σ = 7201157642. Its totient is φ = 7201157640.

The previous prime is 7201157627. The next prime is 7201157659. The reversal of 7201157641 is 1467511027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7195959241 + 5198400 = 84829^2 + 2280^2 .

It is an emirp because it is prime and its reverse (1467511027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7201157641 - 2⁵ = 7201157609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7201157597 and 7201157606.

It is not a weakly prime, because it can be changed into another prime (7201157611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3600578820 + 3600578821.

It is an arithmetic number, because the mean of its divisors is an integer number (3600578821).

Almost surely, 2^7201157641 is an apocalyptic number.

It is an amenable number.

7201157641 is a deficient number, since it is larger than the sum of its proper divisors (1).

7201157641 is an equidigital number, since it uses as much as digits as its factorization.

7201157641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 7201157641 is about 84859.6349332237. The cubic root of 7201157641 is about 1931.0822534890.

Adding to 7201157641 its reverse (1467511027), we get a palindrome (8668668668).

The spelling of 7201157641 in words is "seven billion, two hundred one million, one hundred fifty-seven thousand, six hundred forty-one".