1310697893 has 2 divisors, whose sum is σ = 1310697894. Its totient is φ = 1310697892.

The previous prime is 1310697889. The next prime is 1310697923. The reversal of 1310697893 is 3987960131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986085604 + 324612289 = 31402^2 + 18017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310697893 - 2² = 1310697889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310697823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655348946 + 655348947.

It is an arithmetic number, because the mean of its divisors is an integer number (655348947).

Almost surely, 2^1310697893 is an apocalyptic number.

It is an amenable number.

1310697893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310697893 is an equidigital number, since it uses as much as digits as its factorization.

1310697893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 1310697893 is about 36203.5618827761. The cubic root of 1310697893 is about 1094.3784530979.

The spelling of 1310697893 in words is "one billion, three hundred ten million, six hundred ninety-seven thousand, eight hundred ninety-three".