1273642233 has 32 divisors (see below), whose sum is σ = 1751777280. Its totient is φ = 822870720.

The previous prime is 1273642229. The next prime is 1273642259. The reversal of 1273642233 is 3322463721.

It is not a de Polignac number, because 1273642233 - 2² = 1273642229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1273642194 and 1273642203.

It is not an unprimeable number, because it can be changed into a prime (1273642133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5328928 + ... + 5329166.

It is an arithmetic number, because the mean of its divisors is an integer number (54743040).

Almost surely, 2^1273642233 is an apocalyptic number.

It is an amenable number.

1273642233 is a deficient number, since it is larger than the sum of its proper divisors (478135047).

1273642233 is a wasteful number, since it uses less digits than its factorization.

1273642233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its digits is 36288, while the sum is 33.

The square root of 1273642233 is about 35688.1245374424. The cubic root of 1273642233 is about 1083.9663917654.

The spelling of 1273642233 in words is "one billion, two hundred seventy-three million, six hundred forty-two thousand, two hundred thirty-three".