13657945 has 16 divisors (see below), whose sum is σ = 18805248. Its totient is φ = 9328320.

The previous prime is 13657939. The next prime is 13657957. The reversal of 13657945 is 54975631.

13657945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13657945 - 2⁹ = 13657433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13657898 and 13657907.

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, 10480 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (1175328).

Almost surely, 2^13657945 is an apocalyptic number.

It is an amenable number.

13657945 is a deficient number, since it is larger than the sum of its proper divisors (5147303).

13657945 is a wasteful number, since it uses less digits than its factorization.

13657945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its digits is 113400, while the sum is 40.

The square root of 13657945 is about 3695.6657045788. The cubic root of 13657945 is about 239.0351599446.

It can be divided in two parts, 136 and 57945, that added together give a square (58081 = 241²).

The spelling of 13657945 in words is "thirteen million, six hundred fifty-seven thousand, nine hundred forty-five".