1336431 has 4 divisors (see below), whose sum is σ = 1781912. Its totient is φ = 890952.

The previous prime is 1336429. The next prime is 1336453. The reversal of 1336431 is 1346331.

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

It is not a de Polignac number, because 1336431 - 2¹ = 1336429 is a prime.

It is a super-2 number, since 2×1336431² = 3572095635522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1336398 and 1336407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1336481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222736 + ... + 222741.

It is an arithmetic number, because the mean of its divisors is an integer number (445478).

2^1336431 is an apocalyptic number.

1336431 is a deficient number, since it is larger than the sum of its proper divisors (445481).

1336431 is an equidigital number, since it uses as much as digits as its factorization.

1336431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445480.

The product of its digits is 648, while the sum is 21.

The square root of 1336431 is about 1156.0410892352. The cubic root of 1336431 is about 110.1494112902.

The spelling of 1336431 in words is "one million, three hundred thirty-six thousand, four hundred thirty-one".