4221552145 has 16 divisors (see below), whose sum is σ = 5341176000. Its totient is φ = 3194278848.

The previous prime is 4221552143. The next prime is 4221552187. The reversal of 4221552145 is 5412551224.

It is a cyclic number.

It is not a de Polignac number, because 4221552145 - 2¹ = 4221552143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4221552143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22911 + ... + 94699.

It is an arithmetic number, because the mean of its divisors is an integer number (333823500).

Almost surely, 2^4221552145 is an apocalyptic number.

It is an amenable number.

4221552145 is a deficient number, since it is larger than the sum of its proper divisors (1119623855).

4221552145 is a wasteful number, since it uses less digits than its factorization.

4221552145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72432.

The product of its digits is 16000, while the sum is 31.

The square root of 4221552145 is about 64973.4726253723. The cubic root of 4221552145 is about 1616.1836887691.

The spelling of 4221552145 in words is "four billion, two hundred twenty-one million, five hundred fifty-two thousand, one hundred forty-five".