1252505164 has 6 divisors (see below), whose sum is σ = 2191884044. Its totient is φ = 626252580.

The previous prime is 1252505153. The next prime is 1252505171. The reversal of 1252505164 is 4615052521.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156563142 + ... + 156563149.

Almost surely, 2^1252505164 is an apocalyptic number.

It is an amenable number.

1252505164 is a deficient number, since it is larger than the sum of its proper divisors (939378880).

1252505164 is a wasteful number, since it uses less digits than its factorization.

1252505164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313126295 (or 313126293 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1252505164 is about 35390.7496953653. The cubic root of 1252505164 is about 1077.9364931041.

Adding to 1252505164 its reverse (4615052521), we get a palindrome (5867557685).

The spelling of 1252505164 in words is "one billion, two hundred fifty-two million, five hundred five thousand, one hundred sixty-four".