3221150545 has 4 divisors (see below), whose sum is σ = 3865380660. Its totient is φ = 2576920432.

The previous prime is 3221150539. The next prime is 3221150563. The reversal of 3221150545 is 5450511223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5450511223 = 61 ⋅89352643.

It can be written as a sum of positive squares in 2 ways, for example, as 866183761 + 2354966784 = 29431^2 + 48528^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221150545 - 2¹⁹ = 3220626257 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322115050 + ... + 322115059.

It is an arithmetic number, because the mean of its divisors is an integer number (966345165).

Almost surely, 2^3221150545 is an apocalyptic number.

It is an amenable number.

3221150545 is a deficient number, since it is larger than the sum of its proper divisors (644230115).

3221150545 is an equidigital number, since it uses as much as digits as its factorization.

3221150545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644230114.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 3221150545 is about 56755.1807767361. The cubic root of 3221150545 is about 1476.8521090925.

Adding to 3221150545 its reverse (5450511223), we get a palindrome (8671661768).

The spelling of 3221150545 in words is "three billion, two hundred twenty-one million, one hundred fifty thousand, five hundred forty-five".