2143155146 has 24 divisors (see below), whose sum is σ = 3541702752. Its totient is φ = 971913800.

The previous prime is 2143155137. The next prime is 2143155149. The reversal of 2143155146 is 6415513412.

It is a super-2 number, since 2×2143155146² = 9186227959652562632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2143155149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97211 + ... + 117201.

It is an arithmetic number, because the mean of its divisors is an integer number (147570948).

Almost surely, 2^2143155146 is an apocalyptic number.

2143155146 is a deficient number, since it is larger than the sum of its proper divisors (1398547606).

2143155146 is a wasteful number, since it uses less digits than its factorization.

2143155146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20458 (or 20447 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 2143155146 is about 46294.2236785541. The cubic root of 2143155146 is about 1289.2917503145.

Adding to 2143155146 its reverse (6415513412), we get a palindrome (8558668558).

The spelling of 2143155146 in words is "two billion, one hundred forty-three million, one hundred fifty-five thousand, one hundred forty-six".