136872571 has 8 divisors (see below), whose sum is σ = 149850288. Its totient is φ = 123984000.

The previous prime is 136872557. The next prime is 136872611. The reversal of 136872571 is 175278631.

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 136872571 - 2⁹ = 136872059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136872521) by changing a digit.

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, 19050 + ... + 25231.

It is an arithmetic number, because the mean of its divisors is an integer number (18731286).

Almost surely, 2^136872571 is an apocalyptic number.

136872571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136872571 is a deficient number, since it is larger than the sum of its proper divisors (12977717).

136872571 is a wasteful number, since it uses less digits than its factorization.

136872571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44573.

The product of its digits is 70560, while the sum is 40.

The square root of 136872571 is about 11699.2551472305. The cubic root of 136872571 is about 515.3537908960.

The spelling of 136872571 in words is "one hundred thirty-six million, eight hundred seventy-two thousand, five hundred seventy-one".