12520154132 has 6 divisors (see below), whose sum is σ = 21910269738. Its totient is φ = 6260077064.

The previous prime is 12520154131. The next prime is 12520154149. The reversal of 12520154132 is 23145102521.

It can be written as a sum of positive squares in only one way, i.e., 9569926276 + 2950227856 = 97826^2 + 54316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520154131) 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, 1565019263 + ... + 1565019270.

It is an arithmetic number, because the mean of its divisors is an integer number (3651711623).

Almost surely, 2^12520154132 is an apocalyptic number.

It is an amenable number.

12520154132 is a deficient number, since it is larger than the sum of its proper divisors (9390115606).

12520154132 is a wasteful number, since it uses less digits than its factorization.

12520154132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130038537 (or 3130038535 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12520154132 its reverse (23145102521), we get a palindrome (35665256653).

The spelling of 12520154132 in words is "twelve billion, five hundred twenty million, one hundred fifty-four thousand, one hundred thirty-two".