1355343263 has 4 divisors (see below), whose sum is σ = 1391974200. Its totient is φ = 1318712328.

The previous prime is 1355343239. The next prime is 1355343289. The reversal of 1355343263 is 3623435531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3623435531 = 47 ⋅77094373.

It is a cyclic number.

It is not a de Polignac number, because 1355343263 - 2⁸ = 1355343007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355343203) 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, 18315413 + ... + 18315486.

It is an arithmetic number, because the mean of its divisors is an integer number (347993550).

Almost surely, 2^1355343263 is an apocalyptic number.

1355343263 is a deficient number, since it is larger than the sum of its proper divisors (36630937).

1355343263 is an equidigital number, since it uses as much as digits as its factorization.

1355343263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36630936.

The product of its digits is 97200, while the sum is 35.

The square root of 1355343263 is about 36814.9869346710. The cubic root of 1355343263 is about 1106.6656596356.

Adding to 1355343263 its reverse (3623435531), we get a palindrome (4978778794).

The spelling of 1355343263 in words is "one billion, three hundred fifty-five million, three hundred forty-three thousand, two hundred sixty-three".