136956271 has 4 divisors (see below), whose sum is σ = 137018952. Its totient is φ = 136893592.

The previous prime is 136956269. The next prime is 136956289. The reversal of 136956271 is 172659631.

136956271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136956271 - 2¹ = 136956269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136956221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27940 + ... + 32473.

It is an arithmetic number, because the mean of its divisors is an integer number (34254738).

Almost surely, 2^136956271 is an apocalyptic number.

136956271 is a deficient number, since it is larger than the sum of its proper divisors (62681).

136956271 is an equidigital number, since it uses as much as digits as its factorization.

136956271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62680.

The product of its digits is 68040, while the sum is 40.

The square root of 136956271 is about 11702.8317513327. The cubic root of 136956271 is about 515.4588188119.

The spelling of 136956271 in words is "one hundred thirty-six million, nine hundred fifty-six thousand, two hundred seventy-one".