3541221449 has 2 divisors, whose sum is σ = 3541221450. Its totient is φ = 3541221448.

The previous prime is 3541221377. The next prime is 3541221469. The reversal of 3541221449 is 9441221453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2998657600 + 542563849 = 54760^2 + 23293^2 .

It is a cyclic number.

It is not a de Polignac number, because 3541221449 - 2²⁰ = 3540172873 is a prime.

It is not a weakly prime, because it can be changed into another prime (3541221469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770610724 + 1770610725.

It is an arithmetic number, because the mean of its divisors is an integer number (1770610725).

Almost surely, 2^3541221449 is an apocalyptic number.

It is an amenable number.

3541221449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3541221449 is an equidigital number, since it uses as much as digits as its factorization.

3541221449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 3541221449 is about 59508.1628770373. The cubic root of 3541221449 is about 1524.2318373004.

The spelling of 3541221449 in words is "three billion, five hundred forty-one million, two hundred twenty-one thousand, four hundred forty-nine".