11801249 has 4 divisors (see below), whose sum is σ = 11812164. Its totient is φ = 11790336.

The previous prime is 11801233. The next prime is 11801263. The reversal of 11801249 is 94210811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94210811 = 3389 ⋅27799.

It can be written as a sum of positive squares in 2 ways, for example, as 2608225 + 9193024 = 1615^2 + 3032^2 .

It is a cyclic number.

It is not a de Polignac number, because 11801249 - 2⁴ = 11801233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11801269) 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, 3632 + ... + 6065.

It is an arithmetic number, because the mean of its divisors is an integer number (2953041).

Almost surely, 2^11801249 is an apocalyptic number.

It is an amenable number.

11801249 is a deficient number, since it is larger than the sum of its proper divisors (10915).

11801249 is an equidigital number, since it uses as much as digits as its factorization.

11801249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10914.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 11801249 is about 3435.2946016317. The cubic root of 11801249 is about 227.6718437581.

The spelling of 11801249 in words is "eleven million, eight hundred one thousand, two hundred forty-nine".