135578968 has 16 divisors (see below), whose sum is σ = 290526480. Its totient is φ = 58105248.

The previous prime is 135578953. The next prime is 135578987. The reversal of 135578968 is 869875531.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210471 + ... + 1210582.

It is an arithmetic number, because the mean of its divisors is an integer number (18157905).

Almost surely, 2^135578968 is an apocalyptic number.

It is an amenable number.

135578968 is an abundant number, since it is smaller than the sum of its proper divisors (154947512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135578968 is a wasteful number, since it uses less digits than its factorization.

135578968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421066 (or 2421062 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 135578968 is about 11643.8381988071. The cubic root of 135578968 is about 513.7250872850.

The spelling of 135578968 in words is "one hundred thirty-five million, five hundred seventy-eight thousand, nine hundred sixty-eight".