1211426 has 8 divisors (see below), whose sum is σ = 1834140. Its totient is φ = 600048.

The previous prime is 1211423. The next prime is 1211443. The reversal of 1211426 is 6241121.

It can be written as a sum of positive squares in 2 ways, for example, as 1050625 + 160801 = 1025^2 + 401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1211426³ = 5333495412652850328, which contains 333 as substring.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (1211423) 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, 2561 + ... + 2996.

2^1211426 is an apocalyptic number.

1211426 is a deficient number, since it is larger than the sum of its proper divisors (622714).

1211426 is a wasteful number, since it uses less digits than its factorization.

1211426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668.

The product of its digits is 96, while the sum is 17.

The square root of 1211426 is about 1100.6479909581. The cubic root of 1211426 is about 106.6020680911.

Adding to 1211426 its reverse (6241121), we get a palindrome (7452547).

The spelling of 1211426 in words is "one million, two hundred eleven thousand, four hundred twenty-six".