7122531133 has 2 divisors, whose sum is σ = 7122531134. Its totient is φ = 7122531132.

The previous prime is 7122531131. The next prime is 7122531161. The reversal of 7122531133 is 3311352217.

It is an a-pointer prime, because the next prime (7122531161) can be obtained adding 7122531133 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5951659609 + 1170871524 = 77147^2 + 34218^2 .

It is an emirp because it is prime and its reverse (3311352217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7122531133 - 2¹ = 7122531131 is a prime.

Together with 7122531131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7122531131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3561265566 + 3561265567.

It is an arithmetic number, because the mean of its divisors is an integer number (3561265567).

Almost surely, 2^7122531133 is an apocalyptic number.

It is an amenable number.

7122531133 is a deficient number, since it is larger than the sum of its proper divisors (1).

7122531133 is an equidigital number, since it uses as much as digits as its factorization.

7122531133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 7122531133 is about 84395.0895076248. The cubic root of 7122531133 is about 1924.0282841157.

The spelling of 7122531133 in words is "seven billion, one hundred twenty-two million, five hundred thirty-one thousand, one hundred thirty-three".