1355765513 has 4 divisors (see below), whose sum is σ = 1366440960. Its totient is φ = 1345090068.

The previous prime is 1355765497. The next prime is 1355765527. The reversal of 1355765513 is 3155675531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1355765513 - 2⁴ = 1355765497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355705513) 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, 5337533 + ... + 5337786.

It is an arithmetic number, because the mean of its divisors is an integer number (341610240).

Almost surely, 2^1355765513 is an apocalyptic number.

It is an amenable number.

1355765513 is a deficient number, since it is larger than the sum of its proper divisors (10675447).

1355765513 is a wasteful number, since it uses less digits than its factorization.

1355765513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675446.

The product of its digits is 236250, while the sum is 41.

The square root of 1355765513 is about 36820.7212449729. The cubic root of 1355765513 is about 1106.7805729738.

The spelling of 1355765513 in words is "one billion, three hundred fifty-five million, seven hundred sixty-five thousand, five hundred thirteen".