11641523 has 4 divisors (see below), whose sum is σ = 12017088. Its totient is φ = 11265960.

The previous prime is 11641517. The next prime is 11641541. The reversal of 11641523 is 32514611.

11641523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11641523 - 2⁶ = 11641459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11601523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187736 + ... + 187797.

It is an arithmetic number, because the mean of its divisors is an integer number (3004272).

Almost surely, 2^11641523 is an apocalyptic number.

11641523 is a deficient number, since it is larger than the sum of its proper divisors (375565).

11641523 is an equidigital number, since it uses as much as digits as its factorization.

11641523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375564.

The product of its digits is 720, while the sum is 23.

The square root of 11641523 is about 3411.9676141488. The cubic root of 11641523 is about 226.6400201760.

The spelling of 11641523 in words is "eleven million, six hundred forty-one thousand, five hundred twenty-three".