1712112691 has 4 divisors (see below), whose sum is σ = 1712835352. Its totient is φ = 1711390032.

The previous prime is 1712112641. The next prime is 1712112697. The reversal of 1712112691 is 1962112171.

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

It is a cyclic number.

It is not a de Polignac number, because 1712112691 - 2¹¹ = 1712110643 is a prime.

It is a super-2 number, since 2×1712112691² = 5862659733366522962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1712112697) 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, 357765 + ... + 362518.

It is an arithmetic number, because the mean of its divisors is an integer number (428208838).

Almost surely, 2^1712112691 is an apocalyptic number.

1712112691 is a deficient number, since it is larger than the sum of its proper divisors (722661).

1712112691 is an equidigital number, since it uses as much as digits as its factorization.

1712112691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722660.

The product of its digits is 1512, while the sum is 31.

The square root of 1712112691 is about 41377.6834900167. The cubic root of 1712112691 is about 1196.3110535246.

The spelling of 1712112691 in words is "one billion, seven hundred twelve million, one hundred twelve thousand, six hundred ninety-one".