711149 has 4 divisors (see below), whose sum is σ = 715260. Its totient is φ = 707040.

The previous prime is 711143. The next prime is 711163. The reversal of 711149 is 941117.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42025 + 669124 = 205^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 711149 - 2⁴ = 711133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 711149.

It is not an unprimeable number, because it can be changed into a prime (711143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (178815).

2⁷¹¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

711149 is a deficient number, since it is larger than the sum of its proper divisors (4111).

711149 is a wasteful number, since it uses less digits than its factorization.

711149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110.

The product of its digits is 252, while the sum is 23.

The square root of 711149 is about 843.2965077599. The cubic root of 711149 is about 89.2593119039.

The spelling of 711149 in words is "seven hundred eleven thousand, one hundred forty-nine".