13555131 has 8 divisors (see below), whose sum is σ = 18239760. Its totient is φ = 8953632.

The previous prime is 13555123. The next prime is 13555147. The reversal of 13555131 is 13155531.

13555131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13555131 - 2³ = 13555123 is a prime.

It is a super-2 number, since 2×13555131² = 367483152854322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13555111) 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, 20400 + ... + 21053.

It is an arithmetic number, because the mean of its divisors is an integer number (2279970).

Almost surely, 2^13555131 is an apocalyptic number.

13555131 is a deficient number, since it is larger than the sum of its proper divisors (4684629).

13555131 is a wasteful number, since it uses less digits than its factorization.

13555131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41565.

The product of its digits is 1125, while the sum is 24.

The square root of 13555131 is about 3681.7293490967. The cubic root of 13555131 is about 238.4338472261.

The spelling of 13555131 in words is "thirteen million, five hundred fifty-five thousand, one hundred thirty-one".