135878827 has 8 divisors (see below), whose sum is σ = 155457792. Its totient is φ = 116341800.

The previous prime is 135878819. The next prime is 135878851. The reversal of 135878827 is 728878531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 135878827 - 2³ = 135878819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135878887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3199 + ... + 16792.

It is an arithmetic number, because the mean of its divisors is an integer number (19432224).

Almost surely, 2^135878827 is an apocalyptic number.

135878827 is a deficient number, since it is larger than the sum of its proper divisors (19578965).

135878827 is an equidigital number, since it uses as much as digits as its factorization.

135878827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20969.

The product of its digits is 752640, while the sum is 49.

The square root of 135878827 is about 11656.7073824472. The cubic root of 135878827 is about 514.1035424042.

The spelling of 135878827 in words is "one hundred thirty-five million, eight hundred seventy-eight thousand, eight hundred twenty-seven".