11641505 has 8 divisors (see below), whose sum is σ = 14029224. Its totient is φ = 9273600.

The previous prime is 11641501. The next prime is 11641517. The reversal of 11641505 is 50514611.

11641505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54289 + 11587216 = 233^2 + 3404^2 .

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

It is not a de Polignac number, because 11641505 - 2² = 11641501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11641501) 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, 3626 + ... + 6035.

It is an arithmetic number, because the mean of its divisors is an integer number (1753653).

Almost surely, 2^11641505 is an apocalyptic number.

It is an amenable number.

11641505 is a deficient number, since it is larger than the sum of its proper divisors (2387719).

11641505 is an equidigital number, since it uses as much as digits as its factorization.

11641505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9907.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 11641505 is about 3411.9649763736. The cubic root of 11641505 is about 226.6399033664.

The spelling of 11641505 in words is "eleven million, six hundred forty-one thousand, five hundred five".