135319868 has 6 divisors (see below), whose sum is σ = 236809776. Its totient is φ = 67659932.

The previous prime is 135319853. The next prime is 135319889. The reversal of 135319868 is 868913531.

It is a super-2 number, since 2×135319868² = 36622933351074848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16914980 + ... + 16914987.

It is an arithmetic number, because the mean of its divisors is an integer number (39468296).

Almost surely, 2^135319868 is an apocalyptic number.

It is an amenable number.

135319868 is a deficient number, since it is larger than the sum of its proper divisors (101489908).

135319868 is a wasteful number, since it uses less digits than its factorization.

135319868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33829971 (or 33829969 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 135319868 is about 11632.7068217161. The cubic root of 135319868 is about 513.3976248630.

The spelling of 135319868 in words is "one hundred thirty-five million, three hundred nineteen thousand, eight hundred sixty-eight".