30031252 has 6 divisors (see below), whose sum is σ = 52554698. Its totient is φ = 15015624.

The previous prime is 30031249. The next prime is 30031259. The reversal of 30031252 is 25213003.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 15007876 = 3876^2 + 3874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031259) 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 as a sum of consecutive naturals, namely, 3753903 + ... + 3753910.

Almost surely, 2^30031252 is an apocalyptic number.

It is an amenable number.

30031252 is a deficient number, since it is larger than the sum of its proper divisors (22523446).

30031252 is a wasteful number, since it uses less digits than its factorization.

30031252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7507817 (or 7507815 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30031252 is about 5480.0777366749. The cubic root of 30031252 is about 310.8311100730.

Adding to 30031252 its reverse (25213003), we get a palindrome (55244255).

The spelling of 30031252 in words is "thirty million, thirty-one thousand, two hundred fifty-two".