30220143 has 4 divisors (see below), whose sum is σ = 40293528. Its totient is φ = 20146760.

The previous prime is 30220139. The next prime is 30220147. The reversal of 30220143 is 34102203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34102203 = 3 ⋅11367401.

It is an interprime number because it is at equal distance from previous prime (30220139) and next prime (30220147).

It is a cyclic number.

It is not a de Polignac number, because 30220143 - 2² = 30220139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5036688 + ... + 5036693.

It is an arithmetic number, because the mean of its divisors is an integer number (10073382).

Almost surely, 2^30220143 is an apocalyptic number.

30220143 is a deficient number, since it is larger than the sum of its proper divisors (10073385).

30220143 is a wasteful number, since it uses less digits than its factorization.

30220143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073384.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30220143 is about 5497.2850571896. The cubic root of 30220143 is about 311.4814384841.

Adding to 30220143 its reverse (34102203), we get a palindrome (64322346).

The spelling of 30220143 in words is "thirty million, two hundred twenty thousand, one hundred forty-three".