135415443430254 has 32 divisors (see below), whose sum is σ = 291716518816800. Its totient is φ = 41658792170112.

The previous prime is 135415443430217. The next prime is 135415443430297. The reversal of 135415443430254 is 452034344514531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155774529 + ... + 156641420.

It is an arithmetic number, because the mean of its divisors is an integer number (9116141213025).

Almost surely, 2^{135415443430254} is an apocalyptic number.

135415443430254 is an abundant number, since it is smaller than the sum of its proper divisors (156301075386546).

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

135415443430254 is a wasteful number, since it uses less digits than its factorization.

135415443430254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312421524.

The product of its (nonzero) digits is 6912000, while the sum is 48.

Adding to 135415443430254 its reverse (452034344514531), we get a palindrome (587449787944785).

The spelling of 135415443430254 in words is "one hundred thirty-five trillion, four hundred fifteen billion, four hundred forty-three million, four hundred thirty thousand, two hundred fifty-four".