1330231 has 8 divisors (see below), whose sum is σ = 1527680. Its totient is φ = 1134648.

The previous prime is 1330229. The next prime is 1330237. The reversal of 1330231 is 1320331.

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

It is a cyclic number.

It is not a de Polignac number, because 1330231 - 2¹ = 1330229 is a prime.

It is a super-2 number, since 2×1330231² = 3539029026722, which contains 22 as substring.

It is an Ulam number.

1330231 is a modest number, since divided by 231 gives 133 as remainder.

1330231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1840 + ... + 2458.

It is an arithmetic number, because the mean of its divisors is an integer number (190960).

2^1330231 is an apocalyptic number.

1330231 is a deficient number, since it is larger than the sum of its proper divisors (197449).

1330231 is an equidigital number, since it uses as much as digits as its factorization.

1330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1330231 is about 1153.3564063203. The cubic root of 1330231 is about 109.9788113458.

Adding to 1330231 its reverse (1320331), we get a palindrome (2650562).

The spelling of 1330231 in words is "one million, three hundred thirty thousand, two hundred thirty-one".