2142770109 has 16 divisors (see below), whose sum is σ = 2924910912. Its totient is φ = 1394604288.

The previous prime is 2142770107. The next prime is 2142770177. The reversal of 2142770109 is 9010772412.

It is not a de Polignac number, because 2142770109 - 2¹ = 2142770107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142770109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142770101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474667 + ... + 479159.

It is an arithmetic number, because the mean of its divisors is an integer number (182806932).

Almost surely, 2^2142770109 is an apocalyptic number.

It is an amenable number.

2142770109 is a deficient number, since it is larger than the sum of its proper divisors (782140803).

2142770109 is a wasteful number, since it uses less digits than its factorization.

2142770109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 2142770109 is about 46290.0649059817. The cubic root of 2142770109 is about 1289.2145347568.

The spelling of 2142770109 in words is "two billion, one hundred forty-two million, seven hundred seventy thousand, one hundred nine".