135338861 has 24 divisors (see below), whose sum is σ = 161864640. Its totient is φ = 110797632.

The previous prime is 135338849. The next prime is 135338893. The reversal of 135338861 is 168833531.

It is not a de Polignac number, because 135338861 - 2¹⁰ = 135337837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135338261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1853921 + ... + 1853993.

It is an arithmetic number, because the mean of its divisors is an integer number (6744360).

Almost surely, 2^135338861 is an apocalyptic number.

It is an amenable number.

135338861 is a deficient number, since it is larger than the sum of its proper divisors (26525779).

135338861 is an frugal number, since it uses more digits than its factorization.

135338861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 206 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 135338861 is about 11633.5231550893. The cubic root of 135338861 is about 513.4216432748.

The spelling of 135338861 in words is "one hundred thirty-five million, three hundred thirty-eight thousand, eight hundred sixty-one".