143222245 has 16 divisors (see below), whose sum is σ = 173648448. Its totient is φ = 113397760.

The previous prime is 143222243. The next prime is 143222251. The reversal of 143222245 is 542222341.

It is not a de Polignac number, because 143222245 - 2¹ = 143222243 is a prime.

It is a super-2 number, since 2×143222245² = 41025222925680050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143222243) 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 15 ways as a sum of consecutive naturals, for example, 291450 + ... + 291940.

It is an arithmetic number, because the mean of its divisors is an integer number (10853028).

Almost surely, 2^143222245 is an apocalyptic number.

It is an amenable number.

143222245 is a deficient number, since it is larger than the sum of its proper divisors (30426203).

143222245 is a wasteful number, since it uses less digits than its factorization.

143222245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its digits is 3840, while the sum is 25.

The square root of 143222245 is about 11967.5496656584. The cubic root of 143222245 is about 523.2029198437.

Adding to 143222245 its reverse (542222341), we get a palindrome (685444586).

The spelling of 143222245 in words is "one hundred forty-three million, two hundred twenty-two thousand, two hundred forty-five".