136888811 has 8 divisors (see below), whose sum is σ = 145358064. Its totient is φ = 128465920.

The previous prime is 136888793. The next prime is 136888831. The reversal of 136888811 is 118888631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136888811 - 2⁶ = 136888747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136888831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5405 + ... + 17406.

It is an arithmetic number, because the mean of its divisors is an integer number (18169758).

Almost surely, 2^136888811 is an apocalyptic number.

136888811 is a deficient number, since it is larger than the sum of its proper divisors (8469253).

136888811 is a wasteful number, since it uses less digits than its factorization.

136888811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23181.

The product of its digits is 73728, while the sum is 44.

The square root of 136888811 is about 11699.9491879239. The cubic root of 136888811 is about 515.3741724195.

The spelling of 136888811 in words is "one hundred thirty-six million, eight hundred eighty-eight thousand, eight hundred eleven".