1356441313 has 4 divisors (see below), whose sum is σ = 1356524740. Its totient is φ = 1356357888.

The previous prime is 1356441311. The next prime is 1356441319. The reversal of 1356441313 is 3131446531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 909203409 + 447237904 = 30153^2 + 21148^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356441313 - 2¹ = 1356441311 is a prime.

It is a super-2 number, since 2×1356441313² = 3679866071226327938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356441311) 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, 8520 + ... + 52777.

It is an arithmetic number, because the mean of its divisors is an integer number (339131185).

Almost surely, 2^1356441313 is an apocalyptic number.

It is an amenable number.

1356441313 is a deficient number, since it is larger than the sum of its proper divisors (83427).

1356441313 is an equidigital number, since it uses as much as digits as its factorization.

1356441313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83426.

The product of its digits is 12960, while the sum is 31.

The square root of 1356441313 is about 36829.8969995845. The cubic root of 1356441313 is about 1106.9644391023.

Adding to 1356441313 its reverse (3131446531), we get a palindrome (4487887844).

The spelling of 1356441313 in words is "one billion, three hundred fifty-six million, four hundred forty-one thousand, three hundred thirteen".