1219357 has 2 divisors, whose sum is σ = 1219358. Its totient is φ = 1219356.

The previous prime is 1219349. The next prime is 1219399. The reversal of 1219357 is 7539121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125721 + 93636 = 1061^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 1219357 - 2³ = 1219349 is a prime.

1219357 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1219307) 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, 609678 + 609679.

It is an arithmetic number, because the mean of its divisors is an integer number (609679).

2^1219357 is an apocalyptic number.

It is an amenable number.

1219357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219357 is an equidigital number, since it uses as much as digits as its factorization.

1219357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 28.

The square root of 1219357 is about 1104.2449909327. The cubic root of 1219357 is about 106.8341974587.

The spelling of 1219357 in words is "one million, two hundred nineteen thousand, three hundred fifty-seven".