13755765 has 8 divisors (see below), whose sum is σ = 22009248. Its totient is φ = 7336400.

The previous prime is 13755761. The next prime is 13755769. The reversal of 13755765 is 56755731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13755761) and next prime (13755769).

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

It is not a de Polignac number, because 13755765 - 2² = 13755761 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13755761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458511 + ... + 458540.

It is an arithmetic number, because the mean of its divisors is an integer number (2751156).

Almost surely, 2^13755765 is an apocalyptic number.

13755765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13755765 is a deficient number, since it is larger than the sum of its proper divisors (8253483).

13755765 is an equidigital number, since it uses as much as digits as its factorization.

13755765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917059.

The product of its digits is 110250, while the sum is 39.

The square root of 13755765 is about 3708.8765145257. The cubic root of 13755765 is about 239.6044700361.

It can be divided in two parts, 1375 and 5765, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 13755765 in words is "thirteen million, seven hundred fifty-five thousand, seven hundred sixty-five".