1211359 has 4 divisors (see below), whose sum is σ = 1253160. Its totient is φ = 1169560.

The previous prime is 1211339. The next prime is 1211381. The reversal of 1211359 is 9531121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1211359 - 2¹¹ = 1209311 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20857 + ... + 20914.

It is an arithmetic number, because the mean of its divisors is an integer number (313290).

2^1211359 is an apocalyptic number.

1211359 is a deficient number, since it is larger than the sum of its proper divisors (41801).

1211359 is an equidigital number, since it uses as much as digits as its factorization.

1211359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800.

The product of its digits is 270, while the sum is 22.

The square root of 1211359 is about 1100.6175539214. The cubic root of 1211359 is about 106.6001027846.

The spelling of 1211359 in words is "one million, two hundred eleven thousand, three hundred fifty-nine".