13662945 has 16 divisors (see below), whose sum is σ = 24289920. Its totient is φ = 7286832.

The previous prime is 13662931. The next prime is 13662959. The reversal of 13662945 is 54926631.

It is a happy number.

13662945 is a `hidden beast` number, since 1 + 366 + 294 + 5 = 666.

13662945 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13662931) and next prime (13662959).

It is not a de Polignac number, because 13662945 - 2¹⁷ = 13531873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50469 + ... + 50738.

It is an arithmetic number, because the mean of its divisors is an integer number (1518120).

Almost surely, 2^13662945 is an apocalyptic number.

13662945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13662945 is a deficient number, since it is larger than the sum of its proper divisors (10626975).

13662945 is a wasteful number, since it uses less digits than its factorization.

13662945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101221 (or 101215 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13662945 is about 3696.3421107901. The cubic root of 13662945 is about 239.0643256300.

The spelling of 13662945 in words is "thirteen million, six hundred sixty-two thousand, nine hundred forty-five".