1245212044 has 24 divisors (see below), whose sum is σ = 2297019200. Its totient is φ = 589012560.

The previous prime is 1245212041. The next prime is 1245212047. The reversal of 1245212044 is 4402125421.

It is an interprime number because it is at equal distance from previous prime (1245212041) and next prime (1245212047).

It is not an unprimeable number, because it can be changed into a prime (1245212041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45079 + ... + 67249.

Almost surely, 2^1245212044 is an apocalyptic number.

It is an amenable number.

1245212044 is a deficient number, since it is larger than the sum of its proper divisors (1051807156).

1245212044 is a wasteful number, since it uses less digits than its factorization.

1245212044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22933 (or 22931 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1245212044 is about 35287.5621713940. The cubic root of 1245212044 is about 1075.8402067356.

Adding to 1245212044 its reverse (4402125421), we get a palindrome (5647337465).

The spelling of 1245212044 in words is "one billion, two hundred forty-five million, two hundred twelve thousand, forty-four".