130021252 has 6 divisors (see below), whose sum is σ = 227537198. Its totient is φ = 65010624.

The previous prime is 130021153. The next prime is 130021259. The reversal of 130021252 is 252120031.

It can be written as a sum of positive squares in only one way, i.e., 101888836 + 28132416 = 10094^2 + 5304^2 .

It is not an unprimeable number, because it can be changed into a prime (130021259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16252653 + ... + 16252660.

Almost surely, 2^130021252 is an apocalyptic number.

It is an amenable number.

130021252 is a deficient number, since it is larger than the sum of its proper divisors (97515946).

130021252 is a wasteful number, since it uses less digits than its factorization.

130021252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32505317 (or 32505315 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130021252 is about 11402.6861747572. The cubic root of 130021252 is about 506.6073051030.

Adding to 130021252 its reverse (252120031), we get a palindrome (382141283).

The spelling of 130021252 in words is "one hundred thirty million, twenty-one thousand, two hundred fifty-two".