135420545331 has 32 divisors (see below), whose sum is σ = 209746552320. Its totient is φ = 86189808672.

The previous prime is 135420545291. The next prime is 135420545399. The reversal of 135420545331 is 133545024531.

135420545331 is a `hidden beast` number, since 1 + 3 + 54 + 20 + 54 + 533 + 1 = 666.

It is not a de Polignac number, because 135420545331 - 2⁷ = 135420545203 is a prime.

It is a super-2 number, since 2×135420545331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135420565331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116305 + ... + 533261.

It is an arithmetic number, because the mean of its divisors is an integer number (6554579760).

Almost surely, 2^135420545331 is an apocalyptic number.

135420545331 is a deficient number, since it is larger than the sum of its proper divisors (74326006989).

135420545331 is a wasteful number, since it uses less digits than its factorization.

135420545331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417512 (or 417506 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 135420545331 its reverse (133545024531), we get a palindrome (268965569862).

The spelling of 135420545331 in words is "one hundred thirty-five billion, four hundred twenty million, five hundred forty-five thousand, three hundred thirty-one".