2155107232 has 24 divisors (see below), whose sum is σ = 4290545700. Its totient is φ = 1065444864.

The previous prime is 2155107209. The next prime is 2155107257. The reversal of 2155107232 is 2327015512.

It can be written as a sum of positive squares in 2 ways, for example, as 1746905616 + 408201616 = 41796^2 + 20204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2155107232.

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, 375507 + ... + 381202.

Almost surely, 2^2155107232 is an apocalyptic number.

It is an amenable number.

2155107232 is a deficient number, since it is larger than the sum of its proper divisors (2135438468).

2155107232 is an equidigital number, since it uses as much as digits as its factorization.

2155107232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756808 (or 756800 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 2155107232 is about 46423.1325095582. The cubic root of 2155107232 is about 1291.6840438055.

The spelling of 2155107232 in words is "two billion, one hundred fifty-five million, one hundred seven thousand, two hundred thirty-two".