1312755223 has 16 divisors (see below), whose sum is σ = 1432653376. Its totient is φ = 1195637760.

The previous prime is 1312755221. The next prime is 1312755247. The reversal of 1312755223 is 3225572131.

It is a cyclic number.

It is not a de Polignac number, because 1312755223 - 2¹ = 1312755221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312755221) 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 15 ways as a sum of consecutive naturals, for example, 468958 + ... + 471748.

It is an arithmetic number, because the mean of its divisors is an integer number (89540836).

Almost surely, 2^1312755223 is an apocalyptic number.

1312755223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312755223 is a deficient number, since it is larger than the sum of its proper divisors (119898153).

1312755223 is a wasteful number, since it uses less digits than its factorization.

1312755223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274.

The product of its digits is 12600, while the sum is 31.

The square root of 1312755223 is about 36231.9641062971. The cubic root of 1312755223 is about 1094.9507488812.

The spelling of 1312755223 in words is "one billion, three hundred twelve million, seven hundred fifty-five thousand, two hundred twenty-three".