1355329789 has 4 divisors (see below), whose sum is σ = 1478541600. Its totient is φ = 1232117980.

The previous prime is 1355329757. The next prime is 1355329847. The reversal of 1355329789 is 9879235531.

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 1355329789 - 2⁵ = 1355329757 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 (1355329739) 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, 61605889 + ... + 61605910.

It is an arithmetic number, because the mean of its divisors is an integer number (369635400).

Almost surely, 2^1355329789 is an apocalyptic number.

It is an amenable number.

1355329789 is a deficient number, since it is larger than the sum of its proper divisors (123211811).

1355329789 is a wasteful number, since it uses less digits than its factorization.

1355329789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123211810.

The product of its digits is 2041200, while the sum is 52.

The square root of 1355329789 is about 36814.8039380899. The cubic root of 1355329789 is about 1106.6619923574.

The spelling of 1355329789 in words is "one billion, three hundred fifty-five million, three hundred twenty-nine thousand, seven hundred eighty-nine".