2819142145 has 8 divisors (see below), whose sum is σ = 3438429480. Its totient is φ = 2218341120.

The previous prime is 2819142127. The next prime is 2819142167. The reversal of 2819142145 is 5412419182.

It can be written as a sum of positive squares in 4 ways, for example, as 34680321 + 2784461824 = 5889^2 + 52768^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2819142145 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4621240 + ... + 4621849.

It is an arithmetic number, because the mean of its divisors is an integer number (429803685).

Almost surely, 2^2819142145 is an apocalyptic number.

It is an amenable number.

2819142145 is a deficient number, since it is larger than the sum of its proper divisors (619287335).

2819142145 is an equidigital number, since it uses as much as digits as its factorization.

2819142145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243155.

The product of its digits is 23040, while the sum is 37.

The square root of 2819142145 is about 53095.5944029257. The cubic root of 2819142145 is about 1412.6643693127.

The spelling of 2819142145 in words is "two billion, eight hundred nineteen million, one hundred forty-two thousand, one hundred forty-five".