1247714329 has 3 divisors (see below), whose sum is σ = 1247749653. Its totient is φ = 1247679006.

The previous prime is 1247714323. The next prime is 1247714339. The reversal of 1247714329 is 9234177421.

It is a happy number.

The square root of 1247714329 is 35323.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-1247714329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1247714291 and 1247714300.

It is not an unprimeable number, because it can be changed into a prime (1247714323) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 17662 + ... + 52984.

It is an arithmetic number, because the mean of its divisors is an integer number (415916551).

Almost surely, 2^1247714329 is an apocalyptic number.

1247714329 is the 35323-rd square number.

1247714329 is the 17662-nd centered octagonal number.

It is an amenable number.

1247714329 is a deficient number, since it is larger than the sum of its proper divisors (35324).

1247714329 is an frugal number, since it uses more digits than its factorization.

1247714329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70646 (or 35323 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The cubic root of 1247714329 is about 1076.5603672314.

The spelling of 1247714329 in words is "one billion, two hundred forty-seven million, seven hundred fourteen thousand, three hundred twenty-nine".