1343447145 has 24 divisors (see below), whose sum is σ = 2331268992. Its totient is φ = 715696800.

The previous prime is 1343447137. The next prime is 1343447159. The reversal of 1343447145 is 5417443431.

It is not a de Polignac number, because 1343447145 - 2³ = 1343447137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24610 + ... + 57380.

It is an arithmetic number, because the mean of its divisors is an integer number (97136208).

Almost surely, 2^1343447145 is an apocalyptic number.

1343447145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1343447145 is a deficient number, since it is larger than the sum of its proper divisors (987821847).

1343447145 is a wasteful number, since it uses less digits than its factorization.

1343447145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33693 (or 33690 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 1343447145 is about 36653.0646058416. The cubic root of 1343447145 is about 1103.4183318406.

The spelling of 1343447145 in words is "one billion, three hundred forty-three million, four hundred forty-seven thousand, one hundred forty-five".