135531411 has 16 divisors (see below), whose sum is σ = 187342848. Its totient is φ = 87062400.

The previous prime is 135531379. The next prime is 135531439. The reversal of 135531411 is 114135531.

It is not a de Polignac number, because 135531411 - 2⁵ = 135531379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135531311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19390 + ... + 25436.

It is an arithmetic number, because the mean of its divisors is an integer number (11708928).

Almost surely, 2^135531411 is an apocalyptic number.

135531411 is a deficient number, since it is larger than the sum of its proper divisors (51811437).

135531411 is a wasteful number, since it uses less digits than its factorization.

135531411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322.

The product of its digits is 900, while the sum is 24.

The square root of 135531411 is about 11641.7958666178. The cubic root of 135531411 is about 513.6650138546.

Adding to 135531411 its reverse (114135531), we get a palindrome (249666942).

The spelling of 135531411 in words is "one hundred thirty-five million, five hundred thirty-one thousand, four hundred eleven".