1354243431 has 4 divisors (see below), whose sum is σ = 1805657912. Its totient is φ = 902828952.

The previous prime is 1354243417. The next prime is 1354243433. The reversal of 1354243431 is 1343424531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343424531 = 3 ⋅447808177.

It is not a de Polignac number, because 1354243431 - 2¹⁷ = 1354112359 is a prime.

It is a super-2 number, since 2×1354243431² = 3667950540813303522, 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 (1354243433) 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, 225707236 + ... + 225707241.

It is an arithmetic number, because the mean of its divisors is an integer number (451414478).

Almost surely, 2^1354243431 is an apocalyptic number.

1354243431 is a deficient number, since it is larger than the sum of its proper divisors (451414481).

1354243431 is an equidigital number, since it uses as much as digits as its factorization.

1354243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451414480.

The product of its digits is 17280, while the sum is 30.

The square root of 1354243431 is about 36800.0466168183. The cubic root of 1354243431 is about 1106.3662334762.

Adding to 1354243431 its reverse (1343424531), we get a palindrome (2697667962).

The spelling of 1354243431 in words is "one billion, three hundred fifty-four million, two hundred forty-three thousand, four hundred thirty-one".