136871269 has 8 divisors (see below), whose sum is σ = 144762080. Its totient is φ = 129049200.

The previous prime is 136871219. The next prime is 136871291. The reversal of 136871269 is 962178631.

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 136871269 - 2¹¹ = 136869221 is a prime.

It is a super-2 number, since 2×136871269² = 37467488555340722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136871219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13062 + ... + 21079.

It is an arithmetic number, because the mean of its divisors is an integer number (18095260).

Almost surely, 2^136871269 is an apocalyptic number.

136871269 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

136871269 is a deficient number, since it is larger than the sum of its proper divisors (7890811).

136871269 is a wasteful number, since it uses less digits than its factorization.

136871269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34371.

The product of its digits is 108864, while the sum is 43.

The square root of 136871269 is about 11699.1995025301. The cubic root of 136871269 is about 515.3521567902.

The spelling of 136871269 in words is "one hundred thirty-six million, eight hundred seventy-one thousand, two hundred sixty-nine".