2143235434 has 8 divisors (see below), whose sum is σ = 3301741188. Its totient is φ = 1042655040.

The previous prime is 2143235399. The next prime is 2143235447. The reversal of 2143235434 is 4345323412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2138600025 + 4635409 = 46245^2 + 2153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2143235396 and 2143235405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14481247 + ... + 14481394.

Almost surely, 2^2143235434 is an apocalyptic number.

2143235434 is a deficient number, since it is larger than the sum of its proper divisors (1158505754).

2143235434 is a wasteful number, since it uses less digits than its factorization.

2143235434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28962680.

The product of its digits is 34560, while the sum is 31.

The square root of 2143235434 is about 46295.0908196539. The cubic root of 2143235434 is about 1289.3078501543.

Adding to 2143235434 its reverse (4345323412), we get a palindrome (6488558846).

The spelling of 2143235434 in words is "two billion, one hundred forty-three million, two hundred thirty-five thousand, four hundred thirty-four".