1272717230 has 16 divisors (see below), whose sum is σ = 2339634240. Its totient is φ = 498255072.

The previous prime is 1272717217. The next prime is 1272717239. The reversal of 1272717230 is 327172721.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272717239) 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 7 ways as a sum of consecutive naturals, for example, 1353485 + ... + 1354424.

It is an arithmetic number, because the mean of its divisors is an integer number (146227140).

Almost surely, 2^1272717230 is an apocalyptic number.

1272717230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272717230 is a deficient number, since it is larger than the sum of its proper divisors (1066917010).

1272717230 is a wasteful number, since it uses less digits than its factorization.

1272717230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707963.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 1272717230 is about 35675.1626485430. The cubic root of 1272717230 is about 1083.7039122475.

Adding to 1272717230 its reverse (327172721), we get a palindrome (1599889951).

The spelling of 1272717230 in words is "one billion, two hundred seventy-two million, seven hundred seventeen thousand, two hundred thirty".