1399712255 has 12 divisors (see below), whose sum is σ = 1784271720. Its totient is φ = 1053899904.

The previous prime is 1399712233. The next prime is 1399712267. The reversal of 1399712255 is 5522179931.

It is a happy number.

It is not a de Polignac number, because 1399712255 - 2³⁰ = 325970431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 482885 + ... + 485774.

It is an arithmetic number, because the mean of its divisors is an integer number (148689310).

Almost surely, 2^1399712255 is an apocalyptic number.

1399712255 is a deficient number, since it is larger than the sum of its proper divisors (384559465).

1399712255 is an equidigital number, since it uses as much as digits as its factorization.

1399712255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968698 (or 968681 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 1399712255 is about 37412.7285158407. The cubic root of 1399712255 is about 1118.6122946515.

The spelling of 1399712255 in words is "one billion, three hundred ninety-nine million, seven hundred twelve thousand, two hundred fifty-five".