2115142135 has 4 divisors (see below), whose sum is σ = 2538170568. Its totient is φ = 1692113704.

The previous prime is 2115142109. The next prime is 2115142147. The reversal of 2115142135 is 5312415112.

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 2115142135 - 2⁵ = 2115142103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 211514209 + ... + 211514218.

It is an arithmetic number, because the mean of its divisors is an integer number (634542642).

Almost surely, 2^2115142135 is an apocalyptic number.

2115142135 is a deficient number, since it is larger than the sum of its proper divisors (423028433).

2115142135 is an equidigital number, since it uses as much as digits as its factorization.

2115142135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423028432.

The product of its digits is 1200, while the sum is 25.

The square root of 2115142135 is about 45990.6744351504. The cubic root of 2115142135 is about 1283.6496860323.

Adding to 2115142135 its reverse (5312415112), we get a palindrome (7427557247).

The spelling of 2115142135 in words is "two billion, one hundred fifteen million, one hundred forty-two thousand, one hundred thirty-five".