711121 has 2 divisors, whose sum is σ = 711122. Its totient is φ = 711120.

The previous prime is 711097. The next prime is 711131. The reversal of 711121 is 121117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518400 + 192721 = 720^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 711121 - 2⁵ = 711089 is a prime.

It is not a weakly prime, because it can be changed into another prime (711131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355560 + 355561.

It is an arithmetic number, because the mean of its divisors is an integer number (355561).

2⁷¹¹¹²¹ is an apocalyptic number.

It is an amenable number.

711121 is a deficient number, since it is larger than the sum of its proper divisors (1).

711121 is an equidigital number, since it uses as much as digits as its factorization.

711121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14, while the sum is 13.

The square root of 711121 is about 843.2799060810. The cubic root of 711121 is about 89.2581404225.

Adding to 711121 its reverse (121117), we get a palindrome (832238).

It can be divided in two parts, 7111 and 21, that multiplied together give a triangular number (149331 = T₅₄₆).

The spelling of 711121 in words is "seven hundred eleven thousand, one hundred twenty-one", and thus it is an iban number.