1231126 has 8 divisors (see below), whose sum is σ = 1988784. Its totient is φ = 568200.

The previous prime is 1231099. The next prime is 1231127. The reversal of 1231126 is 6211321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231127) 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, 23650 + ... + 23701.

It is an arithmetic number, because the mean of its divisors is an integer number (248598).

2^1231126 is an apocalyptic number.

1231126 is a deficient number, since it is larger than the sum of its proper divisors (757658).

1231126 is a wasteful number, since it uses less digits than its factorization.

1231126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47366.

The product of its digits is 72, while the sum is 16.

The square root of 1231126 is about 1109.5611745190. The cubic root of 1231126 is about 107.1768119260.

Adding to 1231126 its reverse (6211321), we get a palindrome (7442447).

The spelling of 1231126 in words is "one million, two hundred thirty-one thousand, one hundred twenty-six".