2162143745 has 8 divisors (see below), whose sum is σ = 2643527016. Its totient is φ = 1697078656.

The previous prime is 2162143723. The next prime is 2162143799. The reversal of 2162143745 is 5473412612.

It can be written as a sum of positive squares in 4 ways, for example, as 203461696 + 1958682049 = 14264^2 + 44257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2162143745 - 2¹⁰ = 2162142721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4079252 + ... + 4079781.

It is an arithmetic number, because the mean of its divisors is an integer number (330440877).

Almost surely, 2^2162143745 is an apocalyptic number.

It is an amenable number.

2162143745 is a deficient number, since it is larger than the sum of its proper divisors (481383271).

2162143745 is an equidigital number, since it uses as much as digits as its factorization.

2162143745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8159091.

The product of its digits is 40320, while the sum is 35.

The square root of 2162143745 is about 46498.8574590817. The cubic root of 2162143745 is about 1293.0883169360.

The spelling of 2162143745 in words is "two billion, one hundred sixty-two million, one hundred forty-three thousand, seven hundred forty-five".