40103221 has 4 divisors (see below), whose sum is σ = 42462252. Its totient is φ = 37744192.

The previous prime is 40103179. The next prime is 40103233. The reversal of 40103221 is 12230104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26152996 + 13950225 = 5114^2 + 3735^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103221 - 2¹⁹ = 39578933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103321) 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, 1179490 + ... + 1179523.

It is an arithmetic number, because the mean of its divisors is an integer number (10615563).

Almost surely, 2^40103221 is an apocalyptic number.

It is an amenable number.

40103221 is a deficient number, since it is larger than the sum of its proper divisors (2359031).

40103221 is a wasteful number, since it uses less digits than its factorization.

40103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359030.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40103221 is about 6332.7103991893. The cubic root of 40103221 is about 342.2891123669.

Adding to 40103221 its reverse (12230104), we get a palindrome (52333325).

The spelling of 40103221 in words is "forty million, one hundred three thousand, two hundred twenty-one".