135989054 has 8 divisors (see below), whose sum is σ = 205855320. Its totient is φ = 67370616.

The previous prime is 135989017. The next prime is 135989071. The reversal of 135989054 is 450989531.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 135988996 and 135989014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311684 + ... + 312119.

It is an arithmetic number, because the mean of its divisors is an integer number (25731915).

Almost surely, 2^135989054 is an apocalyptic number.

135989054 is a deficient number, since it is larger than the sum of its proper divisors (69866266).

135989054 is a wasteful number, since it uses less digits than its factorization.

135989054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623914.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 135989054 is about 11661.4344743689. The cubic root of 135989054 is about 514.2425210711.

The spelling of 135989054 in words is "one hundred thirty-five million, nine hundred eighty-nine thousand, fifty-four".