135528778 has 16 divisors (see below), whose sum is σ = 253456704. Its totient is φ = 52803360.

The previous prime is 135528749. The next prime is 135528779. The reversal of 135528778 is 877825531.

It is not an unprimeable number, because it can be changed into a prime (135528779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439875 + ... + 440182.

It is an arithmetic number, because the mean of its divisors is an integer number (15841044).

Almost surely, 2^135528778 is an apocalyptic number.

135528778 is a deficient number, since it is larger than the sum of its proper divisors (117927926).

135528778 is a wasteful number, since it uses less digits than its factorization.

135528778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880077.

The product of its digits is 470400, while the sum is 46.

The square root of 135528778 is about 11641.6827821411. The cubic root of 135528778 is about 513.6616874701.

The spelling of 135528778 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, seven hundred seventy-eight".