1343531 has 8 divisors (see below), whose sum is σ = 1567200. Its totient is φ = 1151304.

The previous prime is 1343519. The next prime is 1343549. The reversal of 1343531 is 1353431.

It is a happy number.

It is not a de Polignac number, because 1343531 - 2⁶ = 1343467 is a prime.

It is a super-2 number, since 2×1343531² = 3610151095922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (195900).

2^1343531 is an apocalyptic number.

1343531 is a deficient number, since it is larger than the sum of its proper divisors (223669).

1343531 is an frugal number, since it uses more digits than its factorization.

1343531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938 (or 3924 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 1343531 is about 1159.1078465786. The cubic root of 1343531 is about 110.3441289007.

Adding to 1343531 its reverse (1353431), we get a palindrome (2696962).

The spelling of 1343531 in words is "one million, three hundred forty-three thousand, five hundred thirty-one".