135742086 has 12 divisors (see below), whose sum is σ = 294107892. Its totient is φ = 45247356.

The previous prime is 135742039. The next prime is 135742151. The reversal of 135742086 is 680247531.

135742086 is a `hidden beast` number, since 1 + 3 + 574 + 2 + 0 + 86 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 135742086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3770596 + ... + 3770631.

It is an arithmetic number, because the mean of its divisors is an integer number (24508991).

Almost surely, 2^135742086 is an apocalyptic number.

135742086 is an abundant number, since it is smaller than the sum of its proper divisors (158365806).

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

135742086 is a wasteful number, since it uses less digits than its factorization.

135742086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541235 (or 7541232 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 135742086 is about 11650.8405705340. The cubic root of 135742086 is about 513.9310293180.

Subtracting 135742086 from its reverse (680247531), we obtain a palindrome (544505445).

The spelling of 135742086 in words is "one hundred thirty-five million, seven hundred forty-two thousand, eighty-six".