2155151332 has 12 divisors (see below), whose sum is σ = 3808857276. Its totient is φ = 1066906400.

The previous prime is 2155151303. The next prime is 2155151381. The reversal of 2155151332 is 2331515512.

It can be written as a sum of positive squares in 2 ways, for example, as 1312178176 + 842973156 = 36224^2 + 29034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2155151332.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2666863 + ... + 2667670.

It is an arithmetic number, because the mean of its divisors is an integer number (317404773).

Almost surely, 2^2155151332 is an apocalyptic number.

It is an amenable number.

2155151332 is a deficient number, since it is larger than the sum of its proper divisors (1653705944).

2155151332 is a wasteful number, since it uses less digits than its factorization.

2155151332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334638 (or 5334636 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 2155151332 is about 46423.6074858471. The cubic root of 2155151332 is about 1291.6928543304.

Adding to 2155151332 its reverse (2331515512), we get a palindrome (4486666844).

The spelling of 2155151332 in words is "two billion, one hundred fifty-five million, one hundred fifty-one thousand, three hundred thirty-two".