13491135 has 24 divisors (see below), whose sum is σ = 26725920. Its totient is φ = 6167232.

The previous prime is 13491131. The next prime is 13491143. The reversal of 13491135 is 53119431.

It is not a de Polignac number, because 13491135 - 2² = 13491131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13491099 and 13491108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13491131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21100 + ... + 21729.

It is an arithmetic number, because the mean of its divisors is an integer number (1113580).

Almost surely, 2^13491135 is an apocalyptic number.

13491135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13491135 is a deficient number, since it is larger than the sum of its proper divisors (13234785).

13491135 is a wasteful number, since it uses less digits than its factorization.

13491135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42847 (or 42844 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 13491135 is about 3673.0280423650. The cubic root of 13491135 is about 238.0580267148.

The spelling of 13491135 in words is "thirteen million, four hundred ninety-one thousand, one hundred thirty-five".