136241405 has 8 divisors (see below), whose sum is σ = 163565784. Its totient is φ = 108942400.

The previous prime is 136241393. The next prime is 136241459. The reversal of 136241405 is 504142631.

It can be written as a sum of positive squares in 4 ways, for example, as 3853369 + 132388036 = 1963^2 + 11506^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-136241405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8735 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (20445723).

Almost surely, 2^136241405 is an apocalyptic number.

It is an amenable number.

136241405 is a deficient number, since it is larger than the sum of its proper divisors (27324379).

136241405 is an equidigital number, since it uses as much as digits as its factorization.

136241405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12687.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 136241405 is about 11672.2493547731. The cubic root of 136241405 is about 514.5604128998.

The spelling of 136241405 in words is "one hundred thirty-six million, two hundred forty-one thousand, four hundred five".