135178650 has 36 divisors (see below), whose sum is σ = 363181182. Its totient is φ = 36047520.

The previous prime is 135178591. The next prime is 135178663. The reversal of 135178650 is 56871531.

135178650 is a `hidden beast` number, since 13 + 517 + 86 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 50851161 + 84327489 = 7131^2 + 9183^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 149749 + ... + 150648.

Almost surely, 2^135178650 is an apocalyptic number.

135178650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135178650 is an abundant number, since it is smaller than the sum of its proper divisors (228002532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135178650 is a wasteful number, since it uses less digits than its factorization.

135178650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300415 (or 300407 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 135178650 is about 11626.6353688417. The cubic root of 135178650 is about 513.2189710756.

The spelling of 135178650 in words is "one hundred thirty-five million, one hundred seventy-eight thousand, six hundred fifty".