1245508372 has 12 divisors (see below), whose sum is σ = 2180806740. Its totient is φ = 622420736.

The previous prime is 1245508357. The next prime is 1245508399. The reversal of 1245508372 is 2738055421.

It can be written as a sum of positive squares in 2 ways, for example, as 1052742916 + 192765456 = 32446^2 + 13884^2 .

It is a super-2 number, since 2×1245508372² = 3102582209444180768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74863 + ... + 89974.

It is an arithmetic number, because the mean of its divisors is an integer number (181733895).

Almost surely, 2^1245508372 is an apocalyptic number.

It is an amenable number.

1245508372 is a deficient number, since it is larger than the sum of its proper divisors (935298368).

1245508372 is a wasteful number, since it uses less digits than its factorization.

1245508372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166730 (or 166728 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 1245508372 is about 35291.7606814962. The cubic root of 1245508372 is about 1075.9255406065.

The spelling of 1245508372 in words is "one billion, two hundred forty-five million, five hundred eight thousand, three hundred seventy-two".