30143122 has 12 divisors (see below), whose sum is σ = 46830186. Its totient is φ = 14551040.

The previous prime is 30143119. The next prime is 30143137. The reversal of 30143122 is 22134103.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 17547721 + 12595401 = 4189^2 + 3549^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30143096 and 30143105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7279 + ... + 10642.

Almost surely, 2^30143122 is an apocalyptic number.

30143122 is a deficient number, since it is larger than the sum of its proper divisors (16687064).

30143122 is a wasteful number, since it uses less digits than its factorization.

30143122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17981 (or 17952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30143122 is about 5490.2752207881. The cubic root of 30143122 is about 311.2165928134.

Adding to 30143122 its reverse (22134103), we get a palindrome (52277225).

The spelling of 30143122 in words is "thirty million, one hundred forty-three thousand, one hundred twenty-two".