135400143 has 8 divisors (see below), whose sum is σ = 181322800. Its totient is φ = 89872128.

The previous prime is 135400129. The next prime is 135400147. The reversal of 135400143 is 341004531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135400143 - 2¹⁶ = 135334607 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 (135400147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97858 + ... + 99231.

It is an arithmetic number, because the mean of its divisors is an integer number (22665350).

Almost surely, 2^135400143 is an apocalyptic number.

135400143 is a deficient number, since it is larger than the sum of its proper divisors (45922657).

135400143 is a wasteful number, since it uses less digits than its factorization.

135400143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197321.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 135400143 is about 11636.1567108732. The cubic root of 135400143 is about 513.4991247342.

Adding to 135400143 its reverse (341004531), we get a palindrome (476404674).

The spelling of 135400143 in words is "one hundred thirty-five million, four hundred thousand, one hundred forty-three".