1273325116 has 24 divisors (see below), whose sum is σ = 2605877120. Its totient is φ = 533019312.

The previous prime is 1273325113. The next prime is 1273325117. The reversal of 1273325116 is 6115233721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273325113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527586 + ... + 529993.

Almost surely, 2^1273325116 is an apocalyptic number.

It is an amenable number.

1273325116 is an abundant number, since it is smaller than the sum of its proper divisors (1332552004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1273325116 is a wasteful number, since it uses less digits than its factorization.

1273325116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057633 (or 1057631 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 1273325116 is about 35683.6813683790. The cubic root of 1273325116 is about 1083.8764207374.

Adding to 1273325116 its reverse (6115233721), we get a palindrome (7388558837).

The spelling of 1273325116 in words is "one billion, two hundred seventy-three million, three hundred twenty-five thousand, one hundred sixteen".