13645545 has 16 divisors (see below), whose sum is σ = 21970752. Its totient is φ = 7231680.

The previous prime is 13645537. The next prime is 13645589. The reversal of 13645545 is 54554631.

13645545 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13645545 - 2³ = 13645537 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, 346 + ... + 5235.

It is an arithmetic number, because the mean of its divisors is an integer number (1373172).

Almost surely, 2^13645545 is an apocalyptic number.

13645545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13645545 is a deficient number, since it is larger than the sum of its proper divisors (8325207).

13645545 is a wasteful number, since it uses less digits than its factorization.

13645545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752.

The product of its digits is 36000, while the sum is 33.

The square root of 13645545 is about 3693.9876827082. The cubic root of 13645545 is about 238.9627983156.

The spelling of 13645545 in words is "thirteen million, six hundred forty-five thousand, five hundred forty-five".