135401133 has 8 divisors (see below), whose sum is σ = 206325568. Its totient is φ = 77372064.

The previous prime is 135401131. The next prime is 135401153. The reversal of 135401133 is 331104531.

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

It is not a de Polignac number, because 135401133 - 2¹ = 135401131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6447673 = 135401133 / (1 + 3 + 5 + 4 + 0 + 1 + 1 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135401131) 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, 3223816 + ... + 3223857.

It is an arithmetic number, because the mean of its divisors is an integer number (25790696).

Almost surely, 2^135401133 is an apocalyptic number.

It is an amenable number.

135401133 is a deficient number, since it is larger than the sum of its proper divisors (70924435).

135401133 is an equidigital number, since it uses as much as digits as its factorization.

135401133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447683.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 135401133 is about 11636.1992506144. The cubic root of 135401133 is about 513.5003762417.

Adding to 135401133 its reverse (331104531), we get a palindrome (466505664).

The spelling of 135401133 in words is "one hundred thirty-five million, four hundred one thousand, one hundred thirty-three".