11540579 has 4 divisors (see below), whose sum is σ = 11938560. Its totient is φ = 11142600.

The previous prime is 11540567. The next prime is 11540597. The reversal of 11540579 is 97504511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97504511 = 13 ⋅7500347.

It is a cyclic number.

It is not a de Polignac number, because 11540579 - 2⁸ = 11540323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11540519) 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, 198947 + ... + 199004.

It is an arithmetic number, because the mean of its divisors is an integer number (2984640).

Almost surely, 2^11540579 is an apocalyptic number.

11540579 is a deficient number, since it is larger than the sum of its proper divisors (397981).

11540579 is an equidigital number, since it uses as much as digits as its factorization.

11540579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397980.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 11540579 is about 3397.1427700348. The cubic root of 11540579 is about 225.9830501293.

The spelling of 11540579 in words is "eleven million, five hundred forty thousand, five hundred seventy-nine".