13768945 has 8 divisors (see below), whose sum is σ = 16548840. Its totient is φ = 10997760.

The previous prime is 13768933. The next prime is 13768957. The reversal of 13768945 is 54986731.

It is an interprime number because it is at equal distance from previous prime (13768933) and next prime (13768957).

It can be written as a sum of positive squares in 4 ways, for example, as 3069504 + 10699441 = 1752^2 + 3271^2 .

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

It is not a de Polignac number, because 13768945 - 2⁵ = 13768913 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2055 + ... + 5635.

It is an arithmetic number, because the mean of its divisors is an integer number (2068605).

Almost surely, 2^13768945 is an apocalyptic number.

It is an amenable number.

13768945 is a deficient number, since it is larger than the sum of its proper divisors (2779895).

13768945 is an equidigital number, since it uses as much as digits as its factorization.

13768945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355.

The product of its digits is 181440, while the sum is 43.

The square root of 13768945 is about 3710.6529075083. The cubic root of 13768945 is about 239.6809707820.

The spelling of 13768945 in words is "thirteen million, seven hundred sixty-eight thousand, nine hundred forty-five".