1356484817 has 4 divisors (see below), whose sum is σ = 1356673716. Its totient is φ = 1356295920.

The previous prime is 1356484781. The next prime is 1356484897. The reversal of 1356484817 is 7184846531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 895266241 + 461218576 = 29921^2 + 21476^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356484817 - 2¹² = 1356480721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356484897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83234 + ... + 98187.

It is an arithmetic number, because the mean of its divisors is an integer number (339168429).

Almost surely, 2^1356484817 is an apocalyptic number.

It is an amenable number.

1356484817 is a deficient number, since it is larger than the sum of its proper divisors (188899).

1356484817 is an equidigital number, since it uses as much as digits as its factorization.

1356484817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188898.

The product of its digits is 645120, while the sum is 47.

The square root of 1356484817 is about 36830.4876019854. The cubic root of 1356484817 is about 1106.9762732219.

The spelling of 1356484817 in words is "one billion, three hundred fifty-six million, four hundred eighty-four thousand, eight hundred seventeen".