1252452342045 has 16 divisors (see below), whose sum is σ = 2041733630592. Its totient is φ = 655371288000.

The previous prime is 1252452342017. The next prime is 1252452342049. The reversal of 1252452342045 is 5402432542521.

It is a de Polignac number, because none of the positive numbers 2^k-1252452342045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1252452341994 and 1252452342012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252452342049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787705081 + ... + 787706670.

It is an arithmetic number, because the mean of its divisors is an integer number (127608351912).

Almost surely, 2^{1252452342045} is an apocalyptic number.

1252452342045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252452342045 is a deficient number, since it is larger than the sum of its proper divisors (789281288547).

1252452342045 is a wasteful number, since it uses less digits than its factorization.

1252452342045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575411812.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 1252452342045 its reverse (5402432542521), we get a palindrome (6654884884566).

The spelling of 1252452342045 in words is "one trillion, two hundred fifty-two billion, four hundred fifty-two million, three hundred forty-two thousand, forty-five".