1245523004532 has 18 divisors (see below), whose sum is σ = 3148405372658. Its totient is φ = 415174334832.

The previous prime is 1245523004521. The next prime is 1245523004533. The reversal of 1245523004532 is 2354003255421.

1245523004532 is a `hidden beast` number, since 1 + 2 + 4 + 552 + 30 + 0 + 45 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1195164951696 + 50358052836 = 1093236^2 + 224406^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 34597861237 = 1245523004532 / (1 + 2 + 4 + 5 + 5 + 2 + 3 + 0 + 0 + 4 + 5 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245523004533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17298930583 + ... + 17298930654.

Almost surely, 2^{1245523004532} is an apocalyptic number.

1245523004532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1245523004532 is an abundant number, since it is smaller than the sum of its proper divisors (1902882368126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245523004532 is a wasteful number, since it uses less digits than its factorization.

1245523004532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34597861247 (or 34597861242 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 1245523004532 its reverse (2354003255421), we get a palindrome (3599526259953).

The spelling of 1245523004532 in words is "one trillion, two hundred forty-five billion, five hundred twenty-three million, four thousand, five hundred thirty-two".