136264405 has 8 divisors (see below), whose sum is σ = 163587384. Its totient is φ = 108964800.

The previous prime is 136264391. The next prime is 136264411. The reversal of 136264405 is 504462631.

It can be written as a sum of positive squares in 4 ways, for example, as 49885969 + 86378436 = 7063^2 + 9294^2 .

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

It is not a de Polignac number, because 136264405 - 2⁹ = 136263893 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, 11875 + ... + 20335.

It is an arithmetic number, because the mean of its divisors is an integer number (20448423).

Almost surely, 2^136264405 is an apocalyptic number.

It is an amenable number.

136264405 is a deficient number, since it is larger than the sum of its proper divisors (27322979).

136264405 is an equidigital number, since it uses as much as digits as its factorization.

136264405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11687.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 136264405 is about 11673.2345560260. The cubic root of 136264405 is about 514.5893669552.

The spelling of 136264405 in words is "one hundred thirty-six million, two hundred sixty-four thousand, four hundred five".