2142115515 has 48 divisors (see below), whose sum is σ = 3936400416. Its totient is φ = 1073894400.

The previous prime is 2142115483. The next prime is 2142115541. The reversal of 2142115515 is 5155112412.

It is a happy number.

2142115515 is a `hidden beast` number, since 2 + 142 + 1 + 1 + 5 + 515 = 666.

It is not a de Polignac number, because 2142115515 - 2⁵ = 2142115483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 902280 + ... + 904650.

It is an arithmetic number, because the mean of its divisors is an integer number (82008342).

Almost surely, 2^2142115515 is an apocalyptic number.

2142115515 is a deficient number, since it is larger than the sum of its proper divisors (1794284901).

2142115515 is a wasteful number, since it uses less digits than its factorization.

2142115515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580 (or 3577 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 2142115515 is about 46282.9937990187. The cubic root of 2142115515 is about 1289.0832408387.

Adding to 2142115515 its reverse (5155112412), we get a palindrome (7297227927).

The spelling of 2142115515 in words is "two billion, one hundred forty-two million, one hundred fifteen thousand, five hundred fifteen".