1431642313 has 8 divisors (see below), whose sum is σ = 1445794056. Its totient is φ = 1417516800.

The previous prime is 1431642299. The next prime is 1431642319. The reversal of 1431642313 is 3132461341.

It can be written as a sum of positive squares in 4 ways, for example, as 760384 + 1430881929 = 872^2 + 37827^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1431642313 - 2²⁹ = 894771401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431642319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113923 + ... + 125863.

It is an arithmetic number, because the mean of its divisors is an integer number (180724257).

Almost surely, 2^1431642313 is an apocalyptic number.

It is an amenable number.

1431642313 is a deficient number, since it is larger than the sum of its proper divisors (14151743).

1431642313 is a wasteful number, since it uses less digits than its factorization.

1431642313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13115.

The product of its digits is 5184, while the sum is 28.

The square root of 1431642313 is about 37837.0494753489. The cubic root of 1431642313 is about 1127.0543042031.

The spelling of 1431642313 in words is "one billion, four hundred thirty-one million, six hundred forty-two thousand, three hundred thirteen".