1252403413245 has 48 divisors (see below), whose sum is σ = 2266030570752. Its totient is φ = 638677670400.

The previous prime is 1252403413171. The next prime is 1252403413271. The reversal of 1252403413245 is 5423143042521.

It is a happy number.

1252403413245 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 403 + 4 + 1 + 3 + 245 = 666.

It is not a de Polignac number, because 1252403413245 - 2¹¹ = 1252403411197 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2683032 + ... + 3115038.

It is an arithmetic number, because the mean of its divisors is an integer number (47208970224).

Almost surely, 2^{1252403413245} is an apocalyptic number.

1252403413245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252403413245 is a deficient number, since it is larger than the sum of its proper divisors (1013627157507).

1252403413245 is a wasteful number, since it uses less digits than its factorization.

1252403413245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434842 (or 434839 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 1252403413245 its reverse (5423143042521), we get a palindrome (6675546455766).

The spelling of 1252403413245 in words is "one trillion, two hundred fifty-two billion, four hundred three million, four hundred thirteen thousand, two hundred forty-five".