1337813 has 2 divisors, whose sum is σ = 1337814. Its totient is φ = 1337812.

The previous prime is 1337803. The next prime is 1337851. The reversal of 1337813 is 3187331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708964 + 628849 = 842^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1337813 - 2¹⁴ = 1321429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1337803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668906 + 668907.

It is an arithmetic number, because the mean of its divisors is an integer number (668907).

2^1337813 is an apocalyptic number.

It is an amenable number.

1337813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1337813 is an equidigital number, since it uses as much as digits as its factorization.

1337813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 1337813 is about 1156.6386644065. The cubic root of 1337813 is about 110.1873666215.

The spelling of 1337813 in words is "one million, three hundred thirty-seven thousand, eight hundred thirteen".