2151183187 has 2 divisors, whose sum is σ = 2151183188. Its totient is φ = 2151183186.

The previous prime is 2151183161. The next prime is 2151183197. The reversal of 2151183187 is 7813811512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151183187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151183107) by changing a digit.

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 as a sum of consecutive naturals, namely, 1075591593 + 1075591594.

It is an arithmetic number, because the mean of its divisors is an integer number (1075591594).

Almost surely, 2^2151183187 is an apocalyptic number.

2151183187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151183187 is an equidigital number, since it uses as much as digits as its factorization.

2151183187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 37.

The square root of 2151183187 is about 46380.8493561729. The cubic root of 2151183187 is about 1290.8995962550.

Adding to 2151183187 its reverse (7813811512), we get a palindrome (9964994699).

The spelling of 2151183187 in words is "two billion, one hundred fifty-one million, one hundred eighty-three thousand, one hundred eighty-seven".