11146621 has 4 divisors (see below), whose sum is σ = 11166012. Its totient is φ = 11127232.

The previous prime is 11146613. The next prime is 11146631. The reversal of 11146621 is 12664111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12664111 = 167 ⋅75833.

It can be written as a sum of positive squares in 2 ways, for example, as 8122500 + 3024121 = 2850^2 + 1739^2 .

It is a cyclic number.

It is not a de Polignac number, because 11146621 - 2³ = 11146613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11146592 and 11146601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11146631) 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, 8806 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (2791503).

Almost surely, 2^11146621 is an apocalyptic number.

It is an amenable number.

11146621 is a deficient number, since it is larger than the sum of its proper divisors (19391).

11146621 is an equidigital number, since it uses as much as digits as its factorization.

11146621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19390.

The product of its digits is 288, while the sum is 22.

The square root of 11146621 is about 3338.6555677398. The cubic root of 11146621 is about 223.3817788026.

The spelling of 11146621 in words is "eleven million, one hundred forty-six thousand, six hundred twenty-one".