115201643 has 2 divisors, whose sum is σ = 115201644. Its totient is φ = 115201642.

The previous prime is 115201637. The next prime is 115201651. The reversal of 115201643 is 346102511.

It is a weak prime.

It is an emirp because it is prime and its reverse (346102511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115201643 - 2²² = 111007339 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (115201633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57600821 + 57600822.

It is an arithmetic number, because the mean of its divisors is an integer number (57600822).

Almost surely, 2^115201643 is an apocalyptic number.

115201643 is a deficient number, since it is larger than the sum of its proper divisors (1).

115201643 is an equidigital number, since it uses as much as digits as its factorization.

115201643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 115201643 is about 10733.2028304696. The cubic root of 115201643 is about 486.5784728427.

The spelling of 115201643 in words is "one hundred fifteen million, two hundred one thousand, six hundred forty-three".