135868730 has 8 divisors (see below), whose sum is σ = 244563732. Its totient is φ = 54347488.

The previous prime is 135868729. The next prime is 135868757. The reversal of 135868730 is 37868531.

It can be written as a sum of positive squares in 2 ways, for example, as 130256569 + 5612161 = 11413^2 + 2369^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6793427 + ... + 6793446.

Almost surely, 2^135868730 is an apocalyptic number.

135868730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135868730 is a deficient number, since it is larger than the sum of its proper divisors (108695002).

135868730 is a wasteful number, since it uses less digits than its factorization.

135868730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13586880.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 135868730 is about 11656.2742761141. The cubic root of 135868730 is about 514.0908079403.

The spelling of 135868730 in words is "one hundred thirty-five million, eight hundred sixty-eight thousand, seven hundred thirty".