1351659343 has 4 divisors (see below), whose sum is σ = 1351782360. Its totient is φ = 1351536328.

The previous prime is 1351659317. The next prime is 1351659359. The reversal of 1351659343 is 3439561531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351659343 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1351659296 and 1351659305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351656343) 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, 43213 + ... + 67606.

It is an arithmetic number, because the mean of its divisors is an integer number (337945590).

Almost surely, 2^1351659343 is an apocalyptic number.

1351659343 is a deficient number, since it is larger than the sum of its proper divisors (123017).

1351659343 is a wasteful number, since it uses less digits than its factorization.

1351659343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123016.

The product of its digits is 145800, while the sum is 40.

The square root of 1351659343 is about 36764.9200053529. The cubic root of 1351659343 is about 1105.6620843310.

The spelling of 1351659343 in words is "one billion, three hundred fifty-one million, six hundred fifty-nine thousand, three hundred forty-three".