13665735 has 12 divisors (see below), whose sum is σ = 23687352. Its totient is φ = 7288368.

The previous prime is 13665733. The next prime is 13665737. The reversal of 13665735 is 53756631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13665733) and next prime (13665737).

It is not a de Polignac number, because 13665735 - 2¹ = 13665733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13665735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13665733) 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, 151797 + ... + 151886.

It is an arithmetic number, because the mean of its divisors is an integer number (1973946).

Almost surely, 2^13665735 is an apocalyptic number.

13665735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13665735 is a deficient number, since it is larger than the sum of its proper divisors (10021617).

13665735 is a wasteful number, since it uses less digits than its factorization.

13665735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303694 (or 303691 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 13665735 is about 3696.7194916574. The cubic root of 13665735 is about 239.0805969896.

It can be divided in two parts, 13665 and 735, that added together give a square (14400 = 120²).

The spelling of 13665735 in words is "thirteen million, six hundred sixty-five thousand, seven hundred thirty-five".