2155230344 has 16 divisors (see below), whose sum is σ = 4253744400. Its totient is φ = 1020898512.

The previous prime is 2155230271. The next prime is 2155230359. The reversal of 2155230344 is 4430325512.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7089422 + ... + 7089725.

It is an arithmetic number, because the mean of its divisors is an integer number (265859025).

Almost surely, 2^2155230344 is an apocalyptic number.

It is an amenable number.

2155230344 is a deficient number, since it is larger than the sum of its proper divisors (2098514056).

2155230344 is a wasteful number, since it uses less digits than its factorization.

2155230344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14179172 (or 14179168 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2155230344 is about 46424.4584674932. The cubic root of 2155230344 is about 1291.7086394537.

Adding to 2155230344 its reverse (4430325512), we get a palindrome (6585555856).

The spelling of 2155230344 in words is "two billion, one hundred fifty-five million, two hundred thirty thousand, three hundred forty-four".