136254671 has 4 divisors (see below), whose sum is σ = 155719632. Its totient is φ = 116789712.

The previous prime is 136254667. The next prime is 136254721. The reversal of 136254671 is 176452631.

136254671 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, and also an emirpimes, since its reverse is a distinct semiprime: 176452631 = 6553 ⋅26927.

It is a cyclic number.

It is not a de Polignac number, because 136254671 - 2² = 136254667 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 (136254661) 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, 9732470 + ... + 9732483.

It is an arithmetic number, because the mean of its divisors is an integer number (38929908).

Almost surely, 2^136254671 is an apocalyptic number.

136254671 is a deficient number, since it is larger than the sum of its proper divisors (19464961).

136254671 is an equidigital number, since it uses as much as digits as its factorization.

136254671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19464960.

The product of its digits is 30240, while the sum is 35.

The square root of 136254671 is about 11672.8176118708. The cubic root of 136254671 is about 514.5771134931.

The spelling of 136254671 in words is "one hundred thirty-six million, two hundred fifty-four thousand, six hundred seventy-one".