9052172191 has 2 divisors, whose sum is σ = 9052172192. Its totient is φ = 9052172190.

The previous prime is 9052172099. The next prime is 9052172203. The reversal of 9052172191 is 1912712509.

It is a strong prime.

It is an emirp because it is prime and its reverse (1912712509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9052172191 - 2²¹ = 9050075039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9052172191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9052172891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4526086095 + 4526086096.

It is an arithmetic number, because the mean of its divisors is an integer number (4526086096).

Almost surely, 2^9052172191 is an apocalyptic number.

9052172191 is a deficient number, since it is larger than the sum of its proper divisors (1).

9052172191 is an equidigital number, since it uses as much as digits as its factorization.

9052172191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 9052172191 is about 95142.9040496452. The cubic root of 9052172191 is about 2084.0954343407.

The spelling of 9052172191 in words is "nine billion, fifty-two million, one hundred seventy-two thousand, one hundred ninety-one".