675142861 has 4 divisors (see below), whose sum is σ = 679443292. Its totient is φ = 670842432.

The previous prime is 675142849. The next prime is 675142873. The reversal of 675142861 is 168241576.

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

It is an interprime number because it is at equal distance from previous prime (675142849) and next prime (675142873).

It can be written as a sum of positive squares in 2 ways, for example, as 388484100 + 286658761 = 19710^2 + 16931^2 .

It is a cyclic number.

It is not a de Polignac number, because 675142861 - 2¹⁷ = 675011789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675142801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149980 + ... + 2150293.

It is an arithmetic number, because the mean of its divisors is an integer number (169860823).

Almost surely, 2^675142861 is an apocalyptic number.

It is an amenable number.

675142861 is a deficient number, since it is larger than the sum of its proper divisors (4300431).

675142861 is a wasteful number, since it uses less digits than its factorization.

675142861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300430.

The product of its digits is 80640, while the sum is 40.

The square root of 675142861 is about 25983.5113293027. The cubic root of 675142861 is about 877.2672027426.

The spelling of 675142861 in words is "six hundred seventy-five million, one hundred forty-two thousand, eight hundred sixty-one".