2142120615 has 64 divisors (see below), whose sum is σ = 3784568832. Its totient is φ = 1029888000.

The previous prime is 2142120613. The next prime is 2142120653. The reversal of 2142120615 is 5160212412.

It is not a de Polignac number, because 2142120615 - 2¹ = 2142120613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142120613) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 797064 + ... + 799746.

It is an arithmetic number, because the mean of its divisors is an integer number (59133888).

Almost surely, 2^2142120615 is an apocalyptic number.

2142120615 is a deficient number, since it is larger than the sum of its proper divisors (1642448217).

2142120615 is a wasteful number, since it uses less digits than its factorization.

2142120615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2142120615 is about 46283.0488948168. The cubic root of 2142120615 is about 1289.0842638647.

The spelling of 2142120615 in words is "two billion, one hundred forty-two million, one hundred twenty thousand, six hundred fifteen".