1355443713 has 30 divisors (see below), whose sum is σ = 2192555574. Its totient is φ = 834110784.

The previous prime is 1355443709. The next prime is 1355443741. The reversal of 1355443713 is 3173445531.

It can be written as a sum of positive squares in 3 ways, for example, as 190108944 + 1165334769 = 13788^2 + 34137^2 .

It is not a de Polignac number, because 1355443713 - 2² = 1355443709 is a prime.

It is a super-2 number, since 2×1355443713² = 3674455318222452738, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1355443703) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 35820 + ... + 63197.

Almost surely, 2^1355443713 is an apocalyptic number.

1355443713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1355443713 is a deficient number, since it is larger than the sum of its proper divisors (837111861).

1355443713 is an equidigital number, since it uses as much as digits as its factorization.

1355443713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99055 (or 99033 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 1355443713 is about 36816.3511635795. The cubic root of 1355443713 is about 1106.6929987908.

The spelling of 1355443713 in words is "one billion, three hundred fifty-five million, four hundred forty-three thousand, seven hundred thirteen".