1330231445 has 16 divisors (see below), whose sum is σ = 1642472832. Its totient is φ = 1033663680.

The previous prime is 1330231423. The next prime is 1330231447. The reversal of 1330231445 is 5441320331.

It is not a de Polignac number, because 1330231445 - 2¹⁸ = 1329969301 is a prime.

It is a super-3 number, since 3×1330231445³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330231447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21824 + ... + 56006.

It is an arithmetic number, because the mean of its divisors is an integer number (102654552).

Almost surely, 2^1330231445 is an apocalyptic number.

It is an amenable number.

1330231445 is a deficient number, since it is larger than the sum of its proper divisors (312241387).

1330231445 is a wasteful number, since it uses less digits than its factorization.

1330231445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34412.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1330231445 is about 36472.3380797009. The cubic root of 1330231445 is about 1099.7882360949.

Adding to 1330231445 its reverse (5441320331), we get a palindrome (6771551776).

The spelling of 1330231445 in words is "one billion, three hundred thirty million, two hundred thirty-one thousand, four hundred forty-five".