1317929 has 2 divisors, whose sum is σ = 1317930. Its totient is φ = 1317928.

The previous prime is 1317917. The next prime is 1317941. The reversal of 1317929 is 9297131.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1317917) and next prime (1317941).

It can be written as a sum of positive squares in only one way, i.e., 1317904 + 25 = 1148^2 + 5^2 .

It is an emirp because it is prime and its reverse (9297131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317929 is a prime.

It is a super-3 number, since 3×1317929³ = 6867478333559268267, which contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1317895 and 1317904.

It is not a weakly prime, because it can be changed into another prime (1317989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658964 + 658965.

It is an arithmetic number, because the mean of its divisors is an integer number (658965).

2^1317929 is an apocalyptic number.

It is an amenable number.

1317929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317929 is an equidigital number, since it uses as much as digits as its factorization.

1317929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 32.

The square root of 1317929 is about 1148.0108884501. The cubic root of 1317929 is about 109.6387321593.

The spelling of 1317929 in words is "one million, three hundred seventeen thousand, nine hundred twenty-nine".