2143385154 has 12 divisors (see below), whose sum is σ = 4644001206. Its totient is φ = 714461712.

The previous prime is 2143385149. The next prime is 2143385161. The reversal of 2143385154 is 4515833412.

It can be written as a sum of positive squares in only one way, i.e., 1724159529 + 419225625 = 41523^2 + 20475^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59538459 + ... + 59538494.

Almost surely, 2^2143385154 is an apocalyptic number.

2143385154 is an abundant number, since it is smaller than the sum of its proper divisors (2500616052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143385154 is a wasteful number, since it uses less digits than its factorization.

2143385154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119076961 (or 119076958 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 2143385154 is about 46296.7078095192. The cubic root of 2143385154 is about 1289.3378718485.

The spelling of 2143385154 in words is "two billion, one hundred forty-three million, three hundred eighty-five thousand, one hundred fifty-four".