1343309945 has 8 divisors (see below), whose sum is σ = 1614122880. Its totient is φ = 1073214000.

The previous prime is 1343309941. The next prime is 1343309969. The reversal of 1343309945 is 5499033431.

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

It is not a de Polignac number, because 1343309945 - 2² = 1343309941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1343309941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 175115 + ... + 182624.

It is an arithmetic number, because the mean of its divisors is an integer number (201765360).

Almost surely, 2^1343309945 is an apocalyptic number.

It is an amenable number.

1343309945 is a deficient number, since it is larger than the sum of its proper divisors (270812935).

1343309945 is an equidigital number, since it uses as much as digits as its factorization.

1343309945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358495.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 1343309945 is about 36651.1929546638. The cubic root of 1343309945 is about 1103.3807682368.

The spelling of 1343309945 in words is "one billion, three hundred forty-three million, three hundred nine thousand, nine hundred forty-five".