1948313 has 2 divisors, whose sum is σ = 1948314. Its totient is φ = 1948312.

The previous prime is 1948301. The next prime is 1948327. The reversal of 1948313 is 3138491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 120409 = 1352^2 + 347^2 .

It is an emirp because it is prime and its reverse (3138491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1948313 - 2¹⁸ = 1686169 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 9⁵ + 4⁹ + 8⁵ + 3³ + 1 + 3¹³ .

It is not a weakly prime, because it can be changed into another prime (1948343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974156 + 974157.

It is an arithmetic number, because the mean of its divisors is an integer number (974157).

2^1948313 is an apocalyptic number.

It is an amenable number.

1948313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948313 is an equidigital number, since it uses as much as digits as its factorization.

1948313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 1948313 is about 1395.8198307805. The cubic root of 1948313 is about 124.8972595784.

The spelling of 1948313 in words is "one million, nine hundred forty-eight thousand, three hundred thirteen".