135868750 has 24 divisors (see below), whose sum is σ = 254749320. Its totient is φ = 54345000.

The previous prime is 135868729. The next prime is 135868757. The reversal of 135868750 is 57868531.

It is a junction number, because it is equal to n+sod(n) for n = 135868697 and 135868706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135868757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4620 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (10614555).

Almost surely, 2^135868750 is an apocalyptic number.

135868750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135868750 is a deficient number, since it is larger than the sum of its proper divisors (118880570).

135868750 is an frugal number, since it uses more digits than its factorization.

135868750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21766 (or 21746 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 135868750 is about 11656.2751340212. The cubic root of 135868750 is about 514.0908331652.

The spelling of 135868750 in words is "one hundred thirty-five million, eight hundred sixty-eight thousand, seven hundred fifty".