1331230258 has 8 divisors (see below), whose sum is σ = 2006982252. Its totient is φ = 662236176.

The previous prime is 1331230211. The next prime is 1331230259. The reversal of 1331230258 is 8520321331.

It can be written as a sum of positive squares in 2 ways, for example, as 984265129 + 346965129 = 31373^2 + 18627^2 .

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 (1331230259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688985 + ... + 1689772.

Almost surely, 2^1331230258 is an apocalyptic number.

1331230258 is a deficient number, since it is larger than the sum of its proper divisors (675751994).

1331230258 is a wasteful number, since it uses less digits than its factorization.

1331230258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378956.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1331230258 is about 36486.0282574029. The cubic root of 1331230258 is about 1100.0634282984.

Adding to 1331230258 its reverse (8520321331), we get a palindrome (9851551589).

The spelling of 1331230258 in words is "one billion, three hundred thirty-one million, two hundred thirty thousand, two hundred fifty-eight".