1525430212 has 12 divisors (see below), whose sum is σ = 2686507180. Its totient is φ = 757856736.

The previous prime is 1525430209. The next prime is 1525430273. The reversal of 1525430212 is 2120345251.

It can be written as a sum of positive squares in 2 ways, for example, as 463713156 + 1061717056 = 21534^2 + 32584^2 .

It is an unprimeable number.

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, 1213887 + ... + 1215142.

Almost surely, 2^1525430212 is an apocalyptic number.

It is an amenable number.

1525430212 is a deficient number, since it is larger than the sum of its proper divisors (1161076968).

1525430212 is a wasteful number, since it uses less digits than its factorization.

1525430212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429190 (or 2429188 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1525430212 is about 39056.7562913256. The cubic root of 1525430212 is about 1151.1469872064.

Adding to 1525430212 its reverse (2120345251), we get a palindrome (3645775463).

The spelling of 1525430212 in words is "one billion, five hundred twenty-five million, four hundred thirty thousand, two hundred twelve".