135964665 has 24 divisors (see below), whose sum is σ = 248077440. Its totient is φ = 68697504.

The previous prime is 135964649. The next prime is 135964681. The reversal of 135964665 is 566469531.

135964665 is a `hidden beast` number, since 13 + 596 + 46 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (135964649) and next prime (135964681).

It is not a de Polignac number, because 135964665 - 2⁴ = 135964649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 135964665.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78657 + ... + 80366.

It is an arithmetic number, because the mean of its divisors is an integer number (10336560).

Almost surely, 2^135964665 is an apocalyptic number.

135964665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135964665 is a deficient number, since it is larger than the sum of its proper divisors (112112775).

135964665 is a wasteful number, since it uses less digits than its factorization.

135964665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159053 (or 159050 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 135964665 is about 11660.3887156475. The cubic root of 135964665 is about 514.2117769038.

The spelling of 135964665 in words is "one hundred thirty-five million, nine hundred sixty-four thousand, six hundred sixty-five".