1716111449 has 4 divisors (see below), whose sum is σ = 1848120036. Its totient is φ = 1584102864.

The previous prime is 1716111437. The next prime is 1716111493. The reversal of 1716111449 is 9441116171.

It is a happy number.

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 151117849 + 1564993600 = 12293^2 + 39560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1716111449 - 2⁸ = 1716111193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1716111349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66004274 + ... + 66004299.

It is an arithmetic number, because the mean of its divisors is an integer number (462030009).

Almost surely, 2^1716111449 is an apocalyptic number.

It is an amenable number.

1716111449 is a deficient number, since it is larger than the sum of its proper divisors (132008587).

1716111449 is a wasteful number, since it uses less digits than its factorization.

1716111449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132008586.

The product of its digits is 6048, while the sum is 35.

The square root of 1716111449 is about 41425.9755346811. The cubic root of 1716111449 is about 1197.2416852093.

It can be divided in two parts, 17161 and 11449, that multiplied together give a square (196476289 = 14017²).

The spelling of 1716111449 in words is "one billion, seven hundred sixteen million, one hundred eleven thousand, four hundred forty-nine".