2142423659 has 4 divisors (see below), whose sum is σ = 2153299104. Its totient is φ = 2131548216.

The previous prime is 2142423653. The next prime is 2142423683. The reversal of 2142423659 is 9563242412.

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 2142423659 - 2⁸ = 2142423403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142423653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5437427 + ... + 5437820.

It is an arithmetic number, because the mean of its divisors is an integer number (538324776).

Almost surely, 2^2142423659 is an apocalyptic number.

2142423659 is a deficient number, since it is larger than the sum of its proper divisors (10875445).

2142423659 is a wasteful number, since it uses less digits than its factorization.

2142423659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10875444.

The product of its digits is 103680, while the sum is 38.

The square root of 2142423659 is about 46286.3225910203. The cubic root of 2142423659 is about 1289.1450495535.

The spelling of 2142423659 in words is "two billion, one hundred forty-two million, four hundred twenty-three thousand, six hundred fifty-nine".