11421045 has 12 divisors (see below), whose sum is σ = 19796556. Its totient is φ = 6091200.

The previous prime is 11421037. The next prime is 11421061. The reversal of 11421045 is 54012411.

It can be written as a sum of positive squares in 2 ways, for example, as 5574321 + 5846724 = 2361^2 + 2418^2 .

It is not a de Polignac number, because 11421045 - 2³ = 11421037 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 126856 + ... + 126945.

It is an arithmetic number, because the mean of its divisors is an integer number (1649713).

Almost surely, 2^11421045 is an apocalyptic number.

11421045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11421045 is a deficient number, since it is larger than the sum of its proper divisors (8375511).

11421045 is a wasteful number, since it uses less digits than its factorization.

11421045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253812 (or 253809 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 11421045 is about 3379.5036617823. The cubic root of 11421045 is about 225.2001182555.

Adding to 11421045 its reverse (54012411), we get a palindrome (65433456).

It can be divided in two parts, 1142 and 1045, that added together give a 7-th power (2187 = 3⁷).

The spelling of 11421045 in words is "eleven million, four hundred twenty-one thousand, forty-five".