13538895 has 16 divisors (see below), whose sum is σ = 21804000. Its totient is φ = 7173504.

The previous prime is 13538879. The next prime is 13538923. The reversal of 13538895 is 59883531.

It is not a de Polignac number, because 13538895 - 2⁴ = 13538879 is a prime.

It is a congruent number.

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, 520 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (1362750).

Almost surely, 2^13538895 is an apocalyptic number.

13538895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13538895 is a deficient number, since it is larger than the sum of its proper divisors (8265105).

13538895 is a wasteful number, since it uses less digits than its factorization.

13538895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914.

The product of its digits is 129600, while the sum is 42.

The square root of 13538895 is about 3679.5237463563. The cubic root of 13538895 is about 238.3386124748.

The spelling of 13538895 in words is "thirteen million, five hundred thirty-eight thousand, eight hundred ninety-five".