2152155005 has 144 divisors (see below), whose sum is σ = 3663700992. Its totient is φ = 1186099200.

The previous prime is 2152154999. The next prime is 2152155007. The reversal of 2152155005 is 5005512512.

It is a de Polignac number, because none of the positive numbers 2^k-2152155005 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152155007) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22187117 + ... + 22187213.

It is an arithmetic number, because the mean of its divisors is an integer number (25442368).

Almost surely, 2^2152155005 is an apocalyptic number.

It is an amenable number.

2152155005 is a deficient number, since it is larger than the sum of its proper divisors (1511545987).

2152155005 is a wasteful number, since it uses less digits than its factorization.

2152155005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2152155005 is about 46391.3246739086. The cubic root of 2152155005 is about 1291.0939591534.

Adding to 2152155005 its reverse (5005512512), we get a palindrome (7157667517).

The spelling of 2152155005 in words is "two billion, one hundred fifty-two million, one hundred fifty-five thousand, five".