1245541501252 has 12 divisors (see below), whose sum is σ = 2180230198636. Its totient is φ = 622618587360.

The previous prime is 1245541501247. The next prime is 1245541501301. The reversal of 1245541501252 is 2521051455421.

It can be written as a sum of positive squares in 2 ways, for example, as 330871145796 + 914670355456 = 575214^2 + 956384^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38022399 + ... + 38055142.

Almost surely, 2^{1245541501252} is an apocalyptic number.

It is an amenable number.

1245541501252 is a deficient number, since it is larger than the sum of its proper divisors (934688697384).

1245541501252 is a wasteful number, since it uses less digits than its factorization.

1245541501252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76081638 (or 76081636 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 1245541501252 its reverse (2521051455421), we get a palindrome (3766592956673).

The spelling of 1245541501252 in words is "one trillion, two hundred forty-five billion, five hundred forty-one million, five hundred one thousand, two hundred fifty-two".