2146645142 has 4 divisors (see below), whose sum is σ = 3219967716. Its totient is φ = 1073322570.

The previous prime is 2146645087. The next prime is 2146645219. The reversal of 2146645142 is 2415466412.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536661284 + ... + 536661287.

It is an arithmetic number, because the mean of its divisors is an integer number (804991929).

Almost surely, 2^2146645142 is an apocalyptic number.

2146645142 is a deficient number, since it is larger than the sum of its proper divisors (1073322574).

2146645142 is a wasteful number, since it uses less digits than its factorization.

2146645142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073322573.

The product of its digits is 46080, while the sum is 35.

The square root of 2146645142 is about 46331.9019898817. The cubic root of 2146645142 is about 1289.9912148111.

The spelling of 2146645142 in words is "two billion, one hundred forty-six million, six hundred forty-five thousand, one hundred forty-two".