135686874 has 8 divisors (see below), whose sum is σ = 271373760. Its totient is φ = 45228956.

The previous prime is 135686869. The next prime is 135686879. The reversal of 135686874 is 478686531.

It is an interprime number because it is at equal distance from previous prime (135686869) and next prime (135686879).

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

135686874 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135686879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11307234 + ... + 11307245.

It is an arithmetic number, because the mean of its divisors is an integer number (33921720).

Almost surely, 2^135686874 is an apocalyptic number.

135686874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135686874 is a wasteful number, since it uses less digits than its factorization.

135686874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22614484.

The product of its digits is 967680, while the sum is 48.

The square root of 135686874 is about 11648.4708867731. The cubic root of 135686874 is about 513.8613407667.

The spelling of 135686874 in words is "one hundred thirty-five million, six hundred eighty-six thousand, eight hundred seventy-four".