1041543221 has 8 divisors (see below), whose sum is σ = 1049706840. Its totient is φ = 1033408512.

The previous prime is 1041543211. The next prime is 1041543257. The reversal of 1041543221 is 1223451401.

It can be written as a sum of positive squares in 4 ways, for example, as 10491121 + 1031052100 = 3239^2 + 32110^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1041543221 - 2⁶ = 1041543157 is a prime.

It is a super-2 number, since 2×1041543221² = 2169624562422109682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041543211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68141 + ... + 82013.

It is an arithmetic number, because the mean of its divisors is an integer number (131213355).

Almost surely, 2^1041543221 is an apocalyptic number.

It is an amenable number.

1041543221 is a deficient number, since it is larger than the sum of its proper divisors (8163619).

1041543221 is a wasteful number, since it uses less digits than its factorization.

1041543221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14455.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1041543221 is about 32272.9487496882. The cubic root of 1041543221 is about 1013.6602872014.

Adding to 1041543221 its reverse (1223451401), we get a palindrome (2264994622).

The spelling of 1041543221 in words is "one billion, forty-one million, five hundred forty-three thousand, two hundred twenty-one".