135344221254 has 96 divisors (see below), whose sum is σ = 343906767360. Its totient is φ = 38028052800.

The previous prime is 135344221253. The next prime is 135344221267. The reversal of 135344221254 is 452122443531.

It is a happy number.

135344221254 is a `hidden beast` number, since 1 + 353 + 4 + 42 + 212 + 54 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135344221253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205917 + ... + 559544.

It is an arithmetic number, because the mean of its divisors is an integer number (3582362160).

Almost surely, 2^135344221254 is an apocalyptic number.

135344221254 is an abundant number, since it is smaller than the sum of its proper divisors (208562546106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135344221254 is a wasteful number, since it uses less digits than its factorization.

135344221254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765546 (or 765543 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 135344221254 its reverse (452122443531), we get a palindrome (587466664785).

The spelling of 135344221254 in words is "one hundred thirty-five billion, three hundred forty-four million, two hundred twenty-one thousand, two hundred fifty-four".