135889549 has 8 divisors (see below), whose sum is σ = 139161600. Its totient is φ = 132633456.

The previous prime is 135889513. The next prime is 135889553. The reversal of 135889549 is 945988531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135889549 - 2⁷ = 135889421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135889496 and 135889505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135889249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14227 + ... + 21775.

It is an arithmetic number, because the mean of its divisors is an integer number (17395200).

Almost surely, 2^135889549 is an apocalyptic number.

It is an amenable number.

135889549 is a deficient number, since it is larger than the sum of its proper divisors (3272051).

135889549 is an equidigital number, since it uses as much as digits as its factorization.

135889549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7979.

The product of its digits is 1555200, while the sum is 52.

The square root of 135889549 is about 11657.1672802615. The cubic root of 135889549 is about 514.1170644354.

The spelling of 135889549 in words is "one hundred thirty-five million, eight hundred eighty-nine thousand, five hundred forty-nine".