3541221445 has 8 divisors (see below), whose sum is σ = 4297213080. Its totient is φ = 2801145600.

The previous prime is 3541221377. The next prime is 3541221449. The reversal of 3541221445 is 5441221453.

It can be written as a sum of positive squares in 4 ways, for example, as 171767236 + 3369454209 = 13106^2 + 58047^2 .

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

It is not a de Polignac number, because 3541221445 - 2⁷ = 3541221317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3541221449) 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, 3978456 + ... + 3979345.

It is an arithmetic number, because the mean of its divisors is an integer number (537151635).

Almost surely, 2^3541221445 is an apocalyptic number.

It is an amenable number.

3541221445 is a deficient number, since it is larger than the sum of its proper divisors (755991635).

3541221445 is an equidigital number, since it uses as much as digits as its factorization.

3541221445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957895.

The product of its digits is 19200, while the sum is 31.

The square root of 3541221445 is about 59508.1628434285. The cubic root of 3541221445 is about 1524.2318367265.

Adding to 3541221445 its reverse (5441221453), we get a palindrome (8982442898).

The spelling of 3541221445 in words is "three billion, five hundred forty-one million, two hundred twenty-one thousand, four hundred forty-five".