1231066 has 8 divisors (see below), whose sum is σ = 1891764. Its totient is φ = 600480.

The previous prime is 1231063. The next prime is 1231073. The reversal of 1231066 is 6601321.

It can be written as a sum of positive squares in 2 ways, for example, as 1199025 + 32041 = 1095^2 + 179^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1231063) 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, 7425 + ... + 7588.

2^1231066 is an apocalyptic number.

1231066 is a deficient number, since it is larger than the sum of its proper divisors (660698).

1231066 is a wasteful number, since it uses less digits than its factorization.

1231066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15056.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1231066 is about 1109.5341364735. The cubic root of 1231066 is about 107.1750707793.

Adding to 1231066 its reverse (6601321), we get a palindrome (7832387).

The spelling of 1231066 in words is "one million, two hundred thirty-one thousand, sixty-six".