2155133130 has 32 divisors (see below), whose sum is σ = 5175111168. Its totient is φ = 574392000.

The previous prime is 2155133107. The next prime is 2155133207. The reversal of 2155133130 is 313315512.

It is a self number, because there is not a number n which added to its sum of digits gives 2155133130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40120 + ... + 76940.

It is an arithmetic number, because the mean of its divisors is an integer number (161722224).

Almost surely, 2^2155133130 is an apocalyptic number.

2155133130 is an abundant number, since it is smaller than the sum of its proper divisors (3019978038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155133130 is a wasteful number, since it uses less digits than its factorization.

2155133130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38782.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 2155133130 is about 46423.4114429347. The cubic root of 2155133130 is about 1291.6892178558.

Adding to 2155133130 its reverse (313315512), we get a palindrome (2468448642).

The spelling of 2155133130 in words is "two billion, one hundred fifty-five million, one hundred thirty-three thousand, one hundred thirty".