2231330145 has 96 divisors (see below), whose sum is σ = 4063288320. Its totient is φ = 1044278400.

The previous prime is 2231330141. The next prime is 2231330149. The reversal of 2231330145 is 5410331322.

It is an interprime number because it is at equal distance from previous prime (2231330141) and next prime (2231330149).

It is not a de Polignac number, because 2231330145 - 2² = 2231330141 is a prime.

It is a super-3 number, since 3×2231330145³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2231330141) 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 95 ways as a sum of consecutive naturals, for example, 7174540 + ... + 7174850.

It is an arithmetic number, because the mean of its divisors is an integer number (42325920).

Almost surely, 2^2231330145 is an apocalyptic number.

It is an amenable number.

2231330145 is a deficient number, since it is larger than the sum of its proper divisors (1831958175).

2231330145 is a wasteful number, since it uses less digits than its factorization.

2231330145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2231330145 is about 47236.9574062513. The cubic root of 2231330145 is about 1306.7362658665.

Adding to 2231330145 its reverse (5410331322), we get a palindrome (7641661467).

The spelling of 2231330145 in words is "two billion, two hundred thirty-one million, three hundred thirty thousand, one hundred forty-five".