1353431 has 4 divisors (see below), whose sum is σ = 1356600. Its totient is φ = 1350264.

The previous prime is 1353397. The next prime is 1353433. The reversal of 1353431 is 1343531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1353431 - 2¹⁸ = 1091287 is a prime.

It is a super-2 number, since 2×1353431² = 3663550943522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (339150).

2^1353431 is an apocalyptic number.

1353431 is a deficient number, since it is larger than the sum of its proper divisors (3169).

1353431 is an equidigital number, since it uses as much as digits as its factorization.

1353431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168.

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

The square root of 1353431 is about 1163.3705342667. The cubic root of 1353431 is about 110.6144947306.

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

The spelling of 1353431 in words is "one million, three hundred fifty-three thousand, four hundred thirty-one".