11577243 has 4 divisors (see below), whose sum is σ = 15436328. Its totient is φ = 7718160.

The previous prime is 11577239. The next prime is 11577253. The reversal of 11577243 is 34277511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34277511 = 3 ⋅11425837.

It is not a de Polignac number, because 11577243 - 2² = 11577239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11577243.

It is not an unprimeable number, because it can be changed into a prime (11577253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1929538 + ... + 1929543.

It is an arithmetic number, because the mean of its divisors is an integer number (3859082).

Almost surely, 2^11577243 is an apocalyptic number.

11577243 is a deficient number, since it is larger than the sum of its proper divisors (3859085).

11577243 is an equidigital number, since it uses as much as digits as its factorization.

11577243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859084.

The product of its digits is 5880, while the sum is 30.

The square root of 11577243 is about 3402.5347904173. The cubic root of 11577243 is about 226.2221104578. Note that the first 3 decimals are identical.

The spelling of 11577243 in words is "eleven million, five hundred seventy-seven thousand, two hundred forty-three".