41451221 has 16 divisors (see below), whose sum is σ = 50073600. Its totient is φ = 33544368.

The previous prime is 41451203. The next prime is 41451229. The reversal of 41451221 is 12215414.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 41451221 - 2¹⁰ = 41450197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41451193 and 41451202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41451229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11090 + ... + 14348.

It is an arithmetic number, because the mean of its divisors is an integer number (3129600).

Almost surely, 2^41451221 is an apocalyptic number.

It is an amenable number.

41451221 is a deficient number, since it is larger than the sum of its proper divisors (8622379).

41451221 is a wasteful number, since it uses less digits than its factorization.

41451221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368.

The product of its digits is 320, while the sum is 20.

The square root of 41451221 is about 6438.2622655496. The cubic root of 41451221 is about 346.0820776023.

Adding to 41451221 its reverse (12215414), we get a palindrome (53666635).

The spelling of 41451221 in words is "forty-one million, four hundred fifty-one thousand, two hundred twenty-one".