135531324 has 18 divisors (see below), whose sum is σ = 342593160. Its totient is φ = 45177096.

The previous prime is 135531317. The next prime is 135531329. The reversal of 135531324 is 423135531.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135531329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1882344 + ... + 1882415.

Almost surely, 2^135531324 is an apocalyptic number.

It is an amenable number.

135531324 is an abundant number, since it is smaller than the sum of its proper divisors (207061836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135531324 is a wasteful number, since it uses less digits than its factorization.

135531324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764769 (or 3764764 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 135531324 is about 11641.7921300803. The cubic root of 135531324 is about 513.6649039443.

Adding to 135531324 its reverse (423135531), we get a palindrome (558666855).

The spelling of 135531324 in words is "one hundred thirty-five million, five hundred thirty-one thousand, three hundred twenty-four".