13767945 has 32 divisors (see below), whose sum is σ = 22947840. Its totient is φ = 7043520.

The previous prime is 13767917. The next prime is 13767947. The reversal of 13767945 is 54976731.

It is not a de Polignac number, because 13767945 - 2⁶ = 13767881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13767897 and 13767906.

It is not an unprimeable number, because it can be changed into a prime (13767947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41430 + ... + 41760.

It is an arithmetic number, because the mean of its divisors is an integer number (717120).

Almost surely, 2^13767945 is an apocalyptic number.

13767945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13767945 is a deficient number, since it is larger than the sum of its proper divisors (9179895).

13767945 is a wasteful number, since it uses less digits than its factorization.

13767945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its digits is 158760, while the sum is 42.

The square root of 13767945 is about 3710.5181578858. The cubic root of 13767945 is about 239.6751681885.

The spelling of 13767945 in words is "thirteen million, seven hundred sixty-seven thousand, nine hundred forty-five".