1331234 has 4 divisors (see below), whose sum is σ = 1996854. Its totient is φ = 665616.

The previous prime is 1331227. The next prime is 1331243. The reversal of 1331234 is 4321331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4321331 = 7 ⋅617333.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 15625 = 1147^2 + 125^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332807 + ... + 332810.

2^1331234 is an apocalyptic number.

1331234 is a deficient number, since it is larger than the sum of its proper divisors (665620).

1331234 is an equidigital number, since it uses as much as digits as its factorization.

1331234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665619.

The product of its digits is 216, while the sum is 17.

The square root of 1331234 is about 1153.7911422784. The cubic root of 1331234 is about 110.0064459033.

Adding to 1331234 its reverse (4321331), we get a palindrome (5652565).

The spelling of 1331234 in words is "one million, three hundred thirty-one thousand, two hundred thirty-four".