135642868 has 24 divisors (see below), whose sum is σ = 248234112. Its totient is φ = 64731744.

The previous prime is 135642841. The next prime is 135642869. The reversal of 135642868 is 868246531.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135642869) 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, 49921 + ... + 52567.

It is an arithmetic number, because the mean of its divisors is an integer number (10343088).

Almost surely, 2^135642868 is an apocalyptic number.

It is an amenable number.

135642868 is a deficient number, since it is larger than the sum of its proper divisors (112591244).

135642868 is a wasteful number, since it uses less digits than its factorization.

135642868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231 (or 3229 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 135642868 is about 11646.5818161382. The cubic root of 135642868 is about 513.8057828817.

The spelling of 135642868 in words is "one hundred thirty-five million, six hundred forty-two thousand, eight hundred sixty-eight".