1310929649 has 2 divisors, whose sum is σ = 1310929650. Its totient is φ = 1310929648.

The previous prime is 1310929561. The next prime is 1310929651. The reversal of 1310929649 is 9469290131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 689325025 + 621604624 = 26255^2 + 24932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310929649 is a prime.

Together with 1310929651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1310929679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655464824 + 655464825.

It is an arithmetic number, because the mean of its divisors is an integer number (655464825).

Almost surely, 2^1310929649 is an apocalyptic number.

It is an amenable number.

1310929649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310929649 is an equidigital number, since it uses as much as digits as its factorization.

1310929649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 1310929649 is about 36206.7624760900. The cubic root of 1310929649 is about 1094.4429515168.

The spelling of 1310929649 in words is "one billion, three hundred ten million, nine hundred twenty-nine thousand, six hundred forty-nine".