1245046664 has 16 divisors (see below), whose sum is σ = 2341831500. Its totient is φ = 620558272.

The previous prime is 1245046637. The next prime is 1245046669. The reversal of 1245046664 is 4666405421.

It can be written as a sum of positive squares in 2 ways, for example, as 1053002500 + 192044164 = 32450^2 + 13858^2 .

It is not an unprimeable number, because it can be changed into a prime (1245046669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242939 + ... + 248010.

Almost surely, 2^1245046664 is an apocalyptic number.

It is an amenable number.

1245046664 is a deficient number, since it is larger than the sum of its proper divisors (1096784836).

1245046664 is a wasteful number, since it uses less digits than its factorization.

1245046664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491272 (or 491268 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 1245046664 is about 35285.2187750055. The cubic root of 1245046664 is about 1075.7925762051.

The spelling of 1245046664 in words is "one billion, two hundred forty-five million, forty-six thousand, six hundred sixty-four".