1312001837 has 2 divisors, whose sum is σ = 1312001838. Its totient is φ = 1312001836.

The previous prime is 1312001791. The next prime is 1312001869. The reversal of 1312001837 is 7381002131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1281210436 + 30791401 = 35794^2 + 5549^2 .

It is an emirp because it is prime and its reverse (7381002131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312001837 - 2¹⁰ = 1312000813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312001137) 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, 656000918 + 656000919.

It is an arithmetic number, because the mean of its divisors is an integer number (656000919).

Almost surely, 2^1312001837 is an apocalyptic number.

It is an amenable number.

1312001837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312001837 is an equidigital number, since it uses as much as digits as its factorization.

1312001837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1312001837 is about 36221.5659103800. The cubic root of 1312001837 is about 1094.7412458941.

Adding to 1312001837 its reverse (7381002131), we get a palindrome (8693003968).

The spelling of 1312001837 in words is "one billion, three hundred twelve million, one thousand, eight hundred thirty-seven".