135236440054 has 8 divisors (see below), whose sum is σ = 204863122368. Its totient is φ = 66948732600.

The previous prime is 135236440021. The next prime is 135236440057. The reversal of 135236440054 is 450044632531.

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

It is a junction number, because it is equal to n+sod(n) for n = 135236439995 and 135236440022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135236440057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334743462 + ... + 334743865.

It is an arithmetic number, because the mean of its divisors is an integer number (25607890296).

Almost surely, 2^135236440054 is an apocalyptic number.

135236440054 is a deficient number, since it is larger than the sum of its proper divisors (69626682314).

135236440054 is a wasteful number, since it uses less digits than its factorization.

135236440054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669487430.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 135236440054 in words is "one hundred thirty-five billion, two hundred thirty-six million, four hundred forty thousand, fifty-four".