1245238945946 has 16 divisors (see below), whose sum is σ = 1873463898600. Its totient is φ = 620751571968.

The previous prime is 1245238945931. The next prime is 1245238945957. The reversal of 1245238945946 is 6495498325421.

It can be written as a sum of positive squares in 4 ways, for example, as 1185648765625 + 59590180321 = 1088875^2 + 244111^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4154000 + ... + 4443668.

Almost surely, 2^{1245238945946} is an apocalyptic number.

1245238945946 is a deficient number, since it is larger than the sum of its proper divisors (628224952654).

1245238945946 is a wasteful number, since it uses less digits than its factorization.

1245238945946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296113.

The product of its digits is 74649600, while the sum is 62.

The spelling of 1245238945946 in words is "one trillion, two hundred forty-five billion, two hundred thirty-eight million, nine hundred forty-five thousand, nine hundred forty-six".