153222217 has 8 divisors (see below), whose sum is σ = 157851392. Its totient is φ = 148618800.

The previous prime is 153222211. The next prime is 153222221. The reversal of 153222217 is 712222351.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153222217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153222191 and 153222200.

It is not an unprimeable number, because it can be changed into a prime (153222211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5992 + ... + 18502.

It is an arithmetic number, because the mean of its divisors is an integer number (19731424).

Almost surely, 2^153222217 is an apocalyptic number.

It is an amenable number.

153222217 is a deficient number, since it is larger than the sum of its proper divisors (4629175).

153222217 is a wasteful number, since it uses less digits than its factorization.

153222217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12879.

The product of its digits is 1680, while the sum is 25.

The square root of 153222217 is about 12378.2962074754. The cubic root of 153222217 is about 535.1069364369.

Adding to 153222217 its reverse (712222351), we get a palindrome (865444568).

The spelling of 153222217 in words is "one hundred fifty-three million, two hundred twenty-two thousand, two hundred seventeen".