11812522 has 4 divisors (see below), whose sum is σ = 17718786. Its totient is φ = 5906260.

The previous prime is 11812517. The next prime is 11812529. The reversal of 11812522 is 22521811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22521811 = 13 ⋅1732447.

It can be written as a sum of positive squares in only one way, i.e., 10949481 + 863041 = 3309^2 + 929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11812493 and 11812502.

It is not an unprimeable number, because it can be changed into a prime (11812529) 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 as a sum of consecutive naturals, namely, 2953129 + ... + 2953132.

Almost surely, 2^11812522 is an apocalyptic number.

11812522 is a deficient number, since it is larger than the sum of its proper divisors (5906264).

11812522 is an equidigital number, since it uses as much as digits as its factorization.

11812522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906263.

The product of its digits is 320, while the sum is 22.

The square root of 11812522 is about 3436.9349717444. The cubic root of 11812522 is about 227.7443142767.

The spelling of 11812522 in words is "eleven million, eight hundred twelve thousand, five hundred twenty-two".