1310899 has 2 divisors, whose sum is σ = 1310900. Its totient is φ = 1310898.

The previous prime is 1310891. The next prime is 1310923. The reversal of 1310899 is 9980131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310899 - 2³ = 1310891 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1310899.

It is not a weakly prime, because it can be changed into another prime (1310891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655449 + 655450.

It is an arithmetic number, because the mean of its divisors is an integer number (655450).

2^1310899 is an apocalyptic number.

1310899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310899 is an equidigital number, since it uses as much as digits as its factorization.

1310899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1310899 is about 1144.9449768439. The cubic root of 1310899 is about 109.4434422241.

It can be divided in two parts, 1310 and 899, that added together give a square (2209 = 47²).

The spelling of 1310899 in words is "one million, three hundred ten thousand, eight hundred ninety-nine".