1445709343 has 8 divisors (see below), whose sum is σ = 1557543008. Its totient is φ = 1333965024.

The previous prime is 1445709341. The next prime is 1445709347. The reversal of 1445709343 is 3439075441.

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

It is a cyclic number.

It is not a de Polignac number, because 1445709343 - 2¹ = 1445709341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1445709296 and 1445709305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445709341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13405 + ... + 55417.

It is an arithmetic number, because the mean of its divisors is an integer number (194692876).

Almost surely, 2^1445709343 is an apocalyptic number.

1445709343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1445709343 is a deficient number, since it is larger than the sum of its proper divisors (111833665).

1445709343 is a wasteful number, since it uses less digits than its factorization.

1445709343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44673.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 1445709343 is about 38022.4847031332. The cubic root of 1445709343 is about 1130.7336825650.

The spelling of 1445709343 in words is "one billion, four hundred forty-five million, seven hundred nine thousand, three hundred forty-three".