2138187151 has 2 divisors, whose sum is σ = 2138187152. Its totient is φ = 2138187150.

The previous prime is 2138187071. The next prime is 2138187179. The reversal of 2138187151 is 1517818312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2138187151 - 2⁹ = 2138186639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2138187151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2138187551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069093575 + 1069093576.

It is an arithmetic number, because the mean of its divisors is an integer number (1069093576).

Almost surely, 2^2138187151 is an apocalyptic number.

2138187151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138187151 is an equidigital number, since it uses as much as digits as its factorization.

2138187151 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 2138187151 is about 46240.5357992314. The cubic root of 2138187151 is about 1288.2947544280.

The spelling of 2138187151 in words is "two billion, one hundred thirty-eight million, one hundred eighty-seven thousand, one hundred fifty-one".