2146543125 has 20 divisors (see below), whose sum is σ = 3576430176. Its totient is φ = 1144822000.

The previous prime is 2146543117. The next prime is 2146543127. The reversal of 2146543125 is 5213456412.

It is not a de Polignac number, because 2146543125 - 2³ = 2146543117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146543127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 570537 + ... + 574286.

Almost surely, 2^2146543125 is an apocalyptic number.

2146543125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2146543125 is a deficient number, since it is larger than the sum of its proper divisors (1429887051).

2146543125 is an equidigital number, since it uses as much as digits as its factorization.

2146543125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144846 (or 1144831 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 2146543125 is about 46330.8010399130. The cubic root of 2146543125 is about 1289.9707793393.

Adding to 2146543125 its reverse (5213456412), we get a palindrome (7359999537).

The spelling of 2146543125 in words is "two billion, one hundred forty-six million, five hundred forty-three thousand, one hundred twenty-five".