1213379 has 2 divisors, whose sum is σ = 1213380. Its totient is φ = 1213378.

The previous prime is 1213367. The next prime is 1213427. The reversal of 1213379 is 9733121.

It is a weak prime.

It is an emirp because it is prime and its reverse (9733121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213379 - 2¹⁶ = 1147843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1213339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606689 + 606690.

It is an arithmetic number, because the mean of its divisors is an integer number (606690).

2^1213379 is an apocalyptic number.

1213379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213379 is an equidigital number, since it uses as much as digits as its factorization.

1213379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 26.

The square root of 1213379 is about 1101.5348383052. The cubic root of 1213379 is about 106.6593234962.

The spelling of 1213379 in words is "one million, two hundred thirteen thousand, three hundred seventy-nine".