2115142489 has 2 divisors, whose sum is σ = 2115142490. Its totient is φ = 2115142488.

The previous prime is 2115142483. The next prime is 2115142511. The reversal of 2115142489 is 9842415112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1884254464 + 230888025 = 43408^2 + 15195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115142489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2115142483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057571244 + 1057571245.

It is an arithmetic number, because the mean of its divisors is an integer number (1057571245).

Almost surely, 2^2115142489 is an apocalyptic number.

It is an amenable number.

2115142489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115142489 is an equidigital number, since it uses as much as digits as its factorization.

2115142489 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2115142489 is about 45990.6782837566. The cubic root of 2115142489 is about 1283.6497576449.

The spelling of 2115142489 in words is "two billion, one hundred fifteen million, one hundred forty-two thousand, four hundred eighty-nine".