135420053 has 8 divisors (see below), whose sum is σ = 140266080. Its totient is φ = 130585840.

The previous prime is 135420041. The next prime is 135420101. The reversal of 135420053 is 350024531.

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

It is not a de Polignac number, because 135420053 - 2⁶ = 135419989 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 (135420013) 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, 24998 + ... + 29928.

It is an arithmetic number, because the mean of its divisors is an integer number (17533260).

Almost surely, 2^135420053 is an apocalyptic number.

It is an amenable number.

135420053 is a deficient number, since it is larger than the sum of its proper divisors (4846027).

135420053 is an equidigital number, since it uses as much as digits as its factorization.

135420053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 135420053 is about 11637.0122024513. The cubic root of 135420053 is about 513.5242927689.

Adding to 135420053 its reverse (350024531), we get a palindrome (485444584).

The spelling of 135420053 in words is "one hundred thirty-five million, four hundred twenty thousand, fifty-three".