135532040 has 48 divisors (see below), whose sum is σ = 354739500. Its totient is φ = 46467456.

The previous prime is 135532037. The next prime is 135532043. The reversal of 135532040 is 40235531.

It is an interprime number because it is at equal distance from previous prime (135532037) and next prime (135532043).

It can be written as a sum of positive squares in 2 ways, for example, as 132756484 + 2775556 = 11522^2 + 1666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135531997 and 135532015.

It is not an unprimeable number, because it can be changed into a prime (135532043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32615 + ... + 36534.

Almost surely, 2^135532040 is an apocalyptic number.

135532040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135532040 is an abundant number, since it is smaller than the sum of its proper divisors (219207460).

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

135532040 is a wasteful number, since it uses less digits than its factorization.

135532040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69174 (or 69163 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 135532040 is about 11641.8228813189. The cubic root of 135532040 is about 513.6658084915.

Adding to 135532040 its reverse (40235531), we get a palindrome (175767571).

The spelling of 135532040 in words is "one hundred thirty-five million, five hundred thirty-two thousand, forty".