13645895 has 12 divisors (see below), whose sum is σ = 17282520. Its totient is φ = 10314864.

The previous prime is 13645847. The next prime is 13645897. The reversal of 13645895 is 59854631.

It is a de Polignac number, because none of the positive numbers 2^k-13645895 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35816 + ... + 36194.

It is an arithmetic number, because the mean of its divisors is an integer number (1440210).

Almost surely, 2^13645895 is an apocalyptic number.

13645895 is a deficient number, since it is larger than the sum of its proper divisors (3636625).

13645895 is an frugal number, since it uses more digits than its factorization.

13645895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 403 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 13645895 is about 3694.0350566826. The cubic root of 13645895 is about 238.9648413820.

The spelling of 13645895 in words is "thirteen million, six hundred forty-five thousand, eight hundred ninety-five".