431332138139 has 8 divisors (see below), whose sum is σ = 518895805440. Its totient is φ = 350254668456.

The previous prime is 431332138123. The next prime is 431332138187. The reversal of 431332138139 is 931831233134.

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

It is not a de Polignac number, because 431332138139 - 2⁴ = 431332138123 is a prime.

It is a super-2 number, since 2×431332138139² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431332138096 and 431332138105.

It is not an unprimeable number, because it can be changed into a prime (431332138639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1621549259 + ... + 1621549524.

It is an arithmetic number, because the mean of its divisors is an integer number (64861975680).

Almost surely, 2^431332138139 is an apocalyptic number.

431332138139 is a deficient number, since it is larger than the sum of its proper divisors (87563667301).

431332138139 is a wasteful number, since it uses less digits than its factorization.

431332138139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243098809.

The product of its digits is 139968, while the sum is 41.

The spelling of 431332138139 in words is "four hundred thirty-one billion, three hundred thirty-two million, one hundred thirty-eight thousand, one hundred thirty-nine".