135537678 has 32 divisors (see below), whose sum is σ = 317049600. Its totient is φ = 42801048.

The previous prime is 135537653. The next prime is 135537679. The reversal of 135537678 is 876735531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135537679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65026 + ... + 67077.

It is an arithmetic number, because the mean of its divisors is an integer number (9907800).

Almost surely, 2^135537678 is an apocalyptic number.

135537678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135537678 is an abundant number, since it is smaller than the sum of its proper divisors (181511922).

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

135537678 is a wasteful number, since it uses less digits than its factorization.

135537678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132133 (or 132127 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 135537678 is about 11642.0650230103. The cubic root of 135537678 is about 513.6729310574.

The spelling of 135537678 in words is "one hundred thirty-five million, five hundred thirty-seven thousand, six hundred seventy-eight".