1231946 has 8 divisors (see below), whose sum is σ = 1853280. Its totient is φ = 614188.

The previous prime is 1231943. The next prime is 1231961. The reversal of 1231946 is 6491321.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1231943) 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, 275 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (231660).

2^1231946 is an apocalyptic number.

1231946 is a deficient number, since it is larger than the sum of its proper divisors (621334).

1231946 is a wasteful number, since it uses less digits than its factorization.

1231946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its digits is 1296, while the sum is 26.

The square root of 1231946 is about 1109.9306284629. The cubic root of 1231946 is about 107.2006019310.

The spelling of 1231946 in words is "one million, two hundred thirty-one thousand, nine hundred forty-six".