1303431 has 8 divisors (see below), whose sum is σ = 1780464. Its totient is φ = 847680.

The previous prime is 1303427. The next prime is 1303439. The reversal of 1303431 is 1343031.

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

It is not a de Polignac number, because 1303431 - 2² = 1303427 is a prime.

It is a super-2 number, since 2×1303431² = 3397864743522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1303431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303439) 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, 5176 + ... + 5421.

It is an arithmetic number, because the mean of its divisors is an integer number (222558).

2^1303431 is an apocalyptic number.

1303431 is a deficient number, since it is larger than the sum of its proper divisors (477033).

1303431 is a wasteful number, since it uses less digits than its factorization.

1303431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10641.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1303431 is about 1141.6790266971. The cubic root of 1303431 is about 109.2352185508.

Adding to 1303431 its reverse (1343031), we get a palindrome (2646462).

The spelling of 1303431 in words is "one million, three hundred three thousand, four hundred thirty-one".