135774789 has 4 divisors (see below), whose sum is σ = 181033056. Its totient is φ = 90516524.

The previous prime is 135774713. The next prime is 135774827. The reversal of 135774789 is 987477531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 987477531 = 3 ⋅329159177.

It is a cyclic number.

It is not a de Polignac number, because 135774789 - 2⁸ = 135774533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135774689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22629129 + ... + 22629134.

It is an arithmetic number, because the mean of its divisors is an integer number (45258264).

Almost surely, 2^135774789 is an apocalyptic number.

It is an amenable number.

135774789 is a deficient number, since it is larger than the sum of its proper divisors (45258267).

135774789 is an equidigital number, since it uses as much as digits as its factorization.

135774789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45258266.

The product of its digits is 1481760, while the sum is 51.

The square root of 135774789 is about 11652.2439469829. The cubic root of 135774789 is about 513.9722981129.

The spelling of 135774789 in words is "one hundred thirty-five million, seven hundred seventy-four thousand, seven hundred eighty-nine".