136956455 has 4 divisors (see below), whose sum is σ = 164347752. Its totient is φ = 109565160.

The previous prime is 136956451. The next prime is 136956497. The reversal of 136956455 is 554659631.

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

It is not a de Polignac number, because 136956455 - 2² = 136956451 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 (136956451) 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, 13695641 + ... + 13695650.

It is an arithmetic number, because the mean of its divisors is an integer number (41086938).

Almost surely, 2^136956455 is an apocalyptic number.

136956455 is a deficient number, since it is larger than the sum of its proper divisors (27391297).

136956455 is an equidigital number, since it uses as much as digits as its factorization.

136956455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27391296.

The product of its digits is 486000, while the sum is 44.

The square root of 136956455 is about 11702.8396126752. The cubic root of 136956455 is about 515.4590496505.

The spelling of 136956455 in words is "one hundred thirty-six million, nine hundred fifty-six thousand, four hundred fifty-five".