136556419 has 4 divisors (see below), whose sum is σ = 136922896. Its totient is φ = 136189944.

The previous prime is 136556417. The next prime is 136556423. The reversal of 136556419 is 914655631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914655631 = 419 ⋅2182949.

It is a cyclic number.

It is not a de Polignac number, because 136556419 - 2¹ = 136556417 is a prime.

It is a super-2 number, since 2×136556419² = 37295311140207122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136556417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182679 + ... + 183424.

It is an arithmetic number, because the mean of its divisors is an integer number (34230724).

Almost surely, 2^136556419 is an apocalyptic number.

136556419 is a deficient number, since it is larger than the sum of its proper divisors (366477).

136556419 is an equidigital number, since it uses as much as digits as its factorization.

136556419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366476.

The product of its digits is 97200, while the sum is 40.

The square root of 136556419 is about 11685.7357064072. The cubic root of 136556419 is about 514.9566922454.

The spelling of 136556419 in words is "one hundred thirty-six million, five hundred fifty-six thousand, four hundred nineteen".