722131127 has 2 divisors, whose sum is σ = 722131128. Its totient is φ = 722131126.

The previous prime is 722131103. The next prime is 722131129. The reversal of 722131127 is 721131227.

It is a strong prime.

It is an emirp because it is prime and its reverse (721131227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722131127 - 2¹² = 722127031 is a prime.

Together with 722131129, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 722131096 and 722131105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722131129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361065563 + 361065564.

It is an arithmetic number, because the mean of its divisors is an integer number (361065564).

Almost surely, 2^722131127 is an apocalyptic number.

722131127 is a deficient number, since it is larger than the sum of its proper divisors (1).

722131127 is an equidigital number, since it uses as much as digits as its factorization.

722131127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 722131127 is about 26872.4975951250. The cubic root of 722131127 is about 897.1643785093.

The spelling of 722131127 in words is "seven hundred twenty-two million, one hundred thirty-one thousand, one hundred twenty-seven".