222153143 has 4 divisors (see below), whose sum is σ = 228157320. Its totient is φ = 216148968.

The previous prime is 222153133. The next prime is 222153193. The reversal of 222153143 is 341351222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341351222 = 2 ⋅170675611.

It is a de Polignac number, because none of the positive numbers 2^k-222153143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222153103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002033 + ... + 3002106.

It is an arithmetic number, because the mean of its divisors is an integer number (57039330).

Almost surely, 2^222153143 is an apocalyptic number.

222153143 is a deficient number, since it is larger than the sum of its proper divisors (6004177).

222153143 is an equidigital number, since it uses as much as digits as its factorization.

222153143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004176.

The product of its digits is 1440, while the sum is 23.

The square root of 222153143 is about 14904.8026823571. The cubic root of 222153143 is about 605.6440951342.

The spelling of 222153143 in words is "two hundred twenty-two million, one hundred fifty-three thousand, one hundred forty-three".