13766745 has 8 divisors (see below), whose sum is σ = 22026816. Its totient is φ = 7342256.

The previous prime is 13766743. The next prime is 13766747. The reversal of 13766745 is 54766731.

It is an interprime number because it is at equal distance from previous prime (13766743) and next prime (13766747).

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

It is a cyclic number.

It is not a de Polignac number, because 13766745 - 2¹ = 13766743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13766741) 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, 458877 + ... + 458906.

It is an arithmetic number, because the mean of its divisors is an integer number (2753352).

Almost surely, 2^13766745 is an apocalyptic number.

13766745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13766745 is a deficient number, since it is larger than the sum of its proper divisors (8260071).

13766745 is an equidigital number, since it uses as much as digits as its factorization.

13766745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917791.

The product of its digits is 105840, while the sum is 39.

The square root of 13766745 is about 3710.3564518790. The cubic root of 13766745 is about 239.6682047053.

The spelling of 13766745 in words is "thirteen million, seven hundred sixty-six thousand, seven hundred forty-five".