136784897 has 8 divisors (see below), whose sum is σ = 140411040. Its totient is φ = 133172640.

The previous prime is 136784881. The next prime is 136784917. The reversal of 136784897 is 798487631.

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 136784897 - 2⁴ = 136784881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136784807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18254 + ... + 24632.

It is an arithmetic number, because the mean of its divisors is an integer number (17551380).

Almost surely, 2^136784897 is an apocalyptic number.

It is an amenable number.

136784897 is a deficient number, since it is larger than the sum of its proper divisors (3626143).

136784897 is an equidigital number, since it uses as much as digits as its factorization.

136784897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943.

The product of its digits is 2032128, while the sum is 53.

The square root of 136784897 is about 11695.5075563226. The cubic root of 136784897 is about 515.2437304245.

The spelling of 136784897 in words is "one hundred thirty-six million, seven hundred eighty-four thousand, eight hundred ninety-seven".