11421164 has 12 divisors (see below), whose sum is σ = 20053488. Its totient is φ = 5691600.

The previous prime is 11421149. The next prime is 11421167. The reversal of 11421164 is 46112411.

It is a super-2 number, since 2×11421164² = 260885974229792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11421167) 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, 3347 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (1671124).

Almost surely, 2^11421164 is an apocalyptic number.

It is an amenable number.

11421164 is a deficient number, since it is larger than the sum of its proper divisors (8632324).

11421164 is a wasteful number, since it uses less digits than its factorization.

11421164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496 (or 9494 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 11421164 is about 3379.5212678721. The cubic root of 11421164 is about 225.2009003999.

Adding to 11421164 its reverse (46112411), we get a palindrome (57533575).

The spelling of 11421164 in words is "eleven million, four hundred twenty-one thousand, one hundred sixty-four".