135878854 has 4 divisors (see below), whose sum is σ = 203818284. Its totient is φ = 67939426.

The previous prime is 135878851. The next prime is 135878863. The reversal of 135878854 is 458878531.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 135878798 and 135878807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135878851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33969712 + ... + 33969715.

It is an arithmetic number, because the mean of its divisors is an integer number (50954571).

Almost surely, 2^135878854 is an apocalyptic number.

135878854 is a deficient number, since it is larger than the sum of its proper divisors (67939430).

135878854 is an equidigital number, since it uses as much as digits as its factorization.

135878854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67939429.

The product of its digits is 1075200, while the sum is 49.

The square root of 135878854 is about 11656.7085405787. The cubic root of 135878854 is about 514.1035764561.

The spelling of 135878854 in words is "one hundred thirty-five million, eight hundred seventy-eight thousand, eight hundred fifty-four".