135400133 has 4 divisors (see below), whose sum is σ = 147709248. Its totient is φ = 123091020.

The previous prime is 135400129. The next prime is 135400147. The reversal of 135400133 is 331004531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135400133 - 2² = 135400129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135400633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6154541 + ... + 6154562.

It is an arithmetic number, because the mean of its divisors is an integer number (36927312).

Almost surely, 2^135400133 is an apocalyptic number.

It is an amenable number.

135400133 is a deficient number, since it is larger than the sum of its proper divisors (12309115).

135400133 is a wasteful number, since it uses less digits than its factorization.

135400133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12309114.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 135400133 is about 11636.1562811781. The cubic root of 135400133 is about 513.4991120927.

Adding to 135400133 its reverse (331004531), we get a palindrome (466404664).

The spelling of 135400133 in words is "one hundred thirty-five million, four hundred thousand, one hundred thirty-three".