2142281854 has 4 divisors (see below), whose sum is σ = 3213422784. Its totient is φ = 1071140926.

The previous prime is 2142281851. The next prime is 2142281861. The reversal of 2142281854 is 4581822412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142281851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535570462 + ... + 535570465.

It is an arithmetic number, because the mean of its divisors is an integer number (803355696).

Almost surely, 2^2142281854 is an apocalyptic number.

2142281854 is a deficient number, since it is larger than the sum of its proper divisors (1071140930).

2142281854 is a wasteful number, since it uses less digits than its factorization.

2142281854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071140929.

The product of its digits is 40960, while the sum is 37.

The square root of 2142281854 is about 46284.7907416680. The cubic root of 2142281854 is about 1289.1166064946.

The spelling of 2142281854 in words is "two billion, one hundred forty-two million, two hundred eighty-one thousand, eight hundred fifty-four".