135133452 has 18 divisors (see below), whose sum is σ = 341587428. Its totient is φ = 45044472.

The previous prime is 135133451. The next prime is 135133457. The reversal of 135133452 is 254331531.

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

It is a super-2 number, since 2×135133452² = 36522099698872608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135133451) 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, 1876818 + ... + 1876889.

Almost surely, 2^135133452 is an apocalyptic number.

135133452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135133452 is an abundant number, since it is smaller than the sum of its proper divisors (206453976).

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

135133452 is a wasteful number, since it uses less digits than its factorization.

135133452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753717 (or 3753712 counting only the distinct ones).

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

The square root of 135133452 is about 11624.6914797770. The cubic root of 135133452 is about 513.1617651563.

Adding to 135133452 its reverse (254331531), we get a palindrome (389464983).

The spelling of 135133452 in words is "one hundred thirty-five million, one hundred thirty-three thousand, four hundred fifty-two".