2143434025 has 6 divisors (see below), whose sum is σ = 2657858222. Its totient is φ = 1714747200.

The previous prime is 2143434011. The next prime is 2143434031. The reversal of 2143434025 is 5204343412.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 182007081 + 1961426944 = 13491^2 + 44288^2 .

It is not a de Polignac number, because 2143434025 - 2²⁵ = 2109879593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143433984 and 2143434002.

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, 42868656 + ... + 42868705.

Almost surely, 2^2143434025 is an apocalyptic number.

2143434025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2143434025 is a deficient number, since it is larger than the sum of its proper divisors (514424197).

2143434025 is an equidigital number, since it uses as much as digits as its factorization.

2143434025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85737371 (or 85737366 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2143434025 is about 46297.2356086192. The cubic root of 2143434025 is about 1289.3476711065.

Adding to 2143434025 its reverse (5204343412), we get a palindrome (7347777437).

The spelling of 2143434025 in words is "two billion, one hundred forty-three million, four hundred thirty-four thousand, twenty-five".