135886890 has 16 divisors (see below), whose sum is σ = 326128608. Its totient is φ = 36236496.

The previous prime is 135886819. The next prime is 135886909. The reversal of 135886890 is 98688531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2264752 + ... + 2264811.

It is an arithmetic number, because the mean of its divisors is an integer number (20383038).

Almost surely, 2^135886890 is an apocalyptic number.

135886890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135886890 is an abundant number, since it is smaller than the sum of its proper divisors (190241718).

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

135886890 is a wasteful number, since it uses less digits than its factorization.

135886890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529573.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 135886890 is about 11657.0532296975. The cubic root of 135886890 is about 514.1137111086.

The spelling of 135886890 in words is "one hundred thirty-five million, eight hundred eighty-six thousand, eight hundred ninety".