2142340505 has 8 divisors (see below), whose sum is σ = 2573337600. Its totient is φ = 1712186416.

The previous prime is 2142340481. The next prime is 2142340531. The reversal of 2142340505 is 5050432412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2142340505 - 2¹⁸ = 2142078361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205145 + ... + 215334.

It is an arithmetic number, because the mean of its divisors is an integer number (321667200).

Almost surely, 2^2142340505 is an apocalyptic number.

It is an amenable number.

2142340505 is a deficient number, since it is larger than the sum of its proper divisors (430997095).

2142340505 is a wasteful number, since it uses less digits than its factorization.

2142340505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421503.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2142340505 is about 46285.4243255909. The cubic root of 2142340505 is about 1289.1283707866.

Adding to 2142340505 its reverse (5050432412), we get a palindrome (7192772917).

The spelling of 2142340505 in words is "two billion, one hundred forty-two million, three hundred forty thousand, five hundred five".