136561415 has 4 divisors (see below), whose sum is σ = 163873704. Its totient is φ = 109249128.

The previous prime is 136561363. The next prime is 136561429. The reversal of 136561415 is 514165631.

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 136561415 - 2⁶ = 136561351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13656137 + ... + 13656146.

It is an arithmetic number, because the mean of its divisors is an integer number (40968426).

Almost surely, 2^136561415 is an apocalyptic number.

136561415 is a deficient number, since it is larger than the sum of its proper divisors (27312289).

136561415 is an equidigital number, since it uses as much as digits as its factorization.

136561415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27312288.

The product of its digits is 10800, while the sum is 32.

The square root of 136561415 is about 11685.9494693414. The cubic root of 136561415 is about 514.9629721705.

The spelling of 136561415 in words is "one hundred thirty-six million, five hundred sixty-one thousand, four hundred fifteen".