6405431134 has 4 divisors (see below), whose sum is σ = 9608146704. Its totient is φ = 3202715566.

The previous prime is 6405431129. The next prime is 6405431147. The reversal of 6405431134 is 4311345046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 6405431096 and 6405431105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601357782 + ... + 1601357785.

It is an arithmetic number, because the mean of its divisors is an integer number (2402036676).

Almost surely, 2^6405431134 is an apocalyptic number.

6405431134 is a deficient number, since it is larger than the sum of its proper divisors (3202715570).

6405431134 is a wasteful number, since it uses less digits than its factorization.

6405431134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202715569.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6405431134 is about 80033.9373890851. The cubic root of 6405431134 is about 1857.1605743483.

The spelling of 6405431134 in words is "six billion, four hundred five million, four hundred thirty-one thousand, one hundred thirty-four".