1745431343 has 4 divisors (see below), whose sum is σ = 1745535000. Its totient is φ = 1745327688.

The previous prime is 1745431321. The next prime is 1745431349. The reversal of 1745431343 is 3431345471.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3431345471 = 28643 ⋅119797.

It is a cyclic number.

It is not a de Polignac number, because 1745431343 - 2¹⁴ = 1745414959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1745431349) 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, 20093 + ... + 62406.

It is an arithmetic number, because the mean of its divisors is an integer number (436383750).

Almost surely, 2^1745431343 is an apocalyptic number.

1745431343 is a deficient number, since it is larger than the sum of its proper divisors (103657).

1745431343 is an equidigital number, since it uses as much as digits as its factorization.

1745431343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103656.

The product of its digits is 60480, while the sum is 35.

The square root of 1745431343 is about 41778.3597452078. The cubic root of 1745431343 is about 1204.0215407216.

The spelling of 1745431343 in words is "one billion, seven hundred forty-five million, four hundred thirty-one thousand, three hundred forty-three".