135420441 has 8 divisors (see below), whose sum is σ = 194449920. Its totient is φ = 83335632.

The previous prime is 135420413. The next prime is 135420449. The reversal of 135420441 is 144024531.

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

It is not a de Polignac number, because 135420441 - 2⁵ = 135420409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135420449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736121 + ... + 1736198.

It is an arithmetic number, because the mean of its divisors is an integer number (24306240).

Almost surely, 2^135420441 is an apocalyptic number.

It is an amenable number.

135420441 is a deficient number, since it is larger than the sum of its proper divisors (59029479).

135420441 is a wasteful number, since it uses less digits than its factorization.

135420441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472335.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 135420441 is about 11637.0288733852. The cubic root of 135420441 is about 513.5247832114.

Adding to 135420441 its reverse (144024531), we get a palindrome (279444972).

The spelling of 135420441 in words is "one hundred thirty-five million, four hundred twenty thousand, four hundred forty-one".