1243502116 has 12 divisors (see below), whose sum is σ = 2177714140. Its totient is φ = 621298080.

The previous prime is 1243502093. The next prime is 1243502119. The reversal of 1243502116 is 6112053421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 264062500 + 979439616 = 16250^2 + 31296^2 .

It is not an unprimeable number, because it can be changed into a prime (1243502119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107031 + ... + 118078.

Almost surely, 2^1243502116 is an apocalyptic number.

It is an amenable number.

1243502116 is a deficient number, since it is larger than the sum of its proper divisors (934212024).

1243502116 is a wasteful number, since it uses less digits than its factorization.

1243502116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226494 (or 226492 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1243502116 is about 35263.3253678663. The cubic root of 1243502116 is about 1075.3475324165.

Adding to 1243502116 its reverse (6112053421), we get a palindrome (7355555537).

The spelling of 1243502116 in words is "one billion, two hundred forty-three million, five hundred two thousand, one hundred sixteen".