2130531652 has 6 divisors (see below), whose sum is σ = 3728430398. Its totient is φ = 1065265824.

The previous prime is 2130531643. The next prime is 2130531659. The reversal of 2130531652 is 2561350312.

It can be written as a sum of positive squares in only one way, i.e., 1725073156 + 405458496 = 41534^2 + 20136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2130531652.

It is not an unprimeable number, because it can be changed into a prime (2130531659) 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, 266316453 + ... + 266316460.

Almost surely, 2^2130531652 is an apocalyptic number.

It is an amenable number.

2130531652 is a deficient number, since it is larger than the sum of its proper divisors (1597898746).

2130531652 is a wasteful number, since it uses less digits than its factorization.

2130531652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532632917 (or 532632915 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 2130531652 is about 46157.6824808179. The cubic root of 2130531652 is about 1286.7553922666.

Adding to 2130531652 its reverse (2561350312), we get a palindrome (4691881964).

The spelling of 2130531652 in words is "two billion, one hundred thirty million, five hundred thirty-one thousand, six hundred fifty-two".