13538535 has 8 divisors (see below), whose sum is σ = 21661680. Its totient is φ = 7220544.

The previous prime is 13538533. The next prime is 13538543. The reversal of 13538535 is 53583531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13538535 - 2¹ = 13538533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13538496 and 13538505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13538531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451270 + ... + 451299.

It is an arithmetic number, because the mean of its divisors is an integer number (2707710).

Almost surely, 2^13538535 is an apocalyptic number.

13538535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13538535 is a deficient number, since it is larger than the sum of its proper divisors (8123145).

13538535 is an equidigital number, since it uses as much as digits as its factorization.

13538535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902577.

The product of its digits is 27000, while the sum is 33.

The square root of 13538535 is about 3679.4748266567. The cubic root of 13538535 is about 238.3364999769.

The spelling of 13538535 in words is "thirteen million, five hundred thirty-eight thousand, five hundred thirty-five".