135178101 has 12 divisors (see below), whose sum is σ = 206743212. Its totient is φ = 84817536.

The previous prime is 135178093. The next prime is 135178117. The reversal of 135178101 is 101871531.

135178101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60372900 + 74805201 = 7770^2 + 8649^2 .

It is not a de Polignac number, because 135178101 - 2³ = 135178093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135178151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441606 + ... + 441911.

It is an arithmetic number, because the mean of its divisors is an integer number (17228601).

Almost surely, 2^135178101 is an apocalyptic number.

It is an amenable number.

135178101 is a deficient number, since it is larger than the sum of its proper divisors (71565111).

135178101 is a wasteful number, since it uses less digits than its factorization.

135178101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883540 (or 883537 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The square root of 135178101 is about 11626.6117592358. The cubic root of 135178101 is about 513.2182762973.

The spelling of 135178101 in words is "one hundred thirty-five million, one hundred seventy-eight thousand, one hundred one".