2131704434 has 8 divisors (see below), whose sum is σ = 3197752668. Its totient is φ = 1065786880.

The previous prime is 2131704299. The next prime is 2131704461. The reversal of 2131704434 is 4344071312.

It can be written as a sum of positive squares in 2 ways, for example, as 2101947409 + 29757025 = 45847^2 + 5455^2 .

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

It is a super-4 number, since 4×2131704434⁴ (a number of 38 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131704397 and 2131704406.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 46034 + ... + 79890.

Almost surely, 2^2131704434 is an apocalyptic number.

2131704434 is a deficient number, since it is larger than the sum of its proper divisors (1066048234).

2131704434 is a wasteful number, since it uses less digits than its factorization.

2131704434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65340.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 2131704434 is about 46170.3848153771. The cubic root of 2131704434 is about 1286.9914533372.

Adding to 2131704434 its reverse (4344071312), we get a palindrome (6475775746).

The spelling of 2131704434 in words is "two billion, one hundred thirty-one million, seven hundred four thousand, four hundred thirty-four".