2151008117 has 2 divisors, whose sum is σ = 2151008118. Its totient is φ = 2151008116.

The previous prime is 2151008089. The next prime is 2151008161. The reversal of 2151008117 is 7118001512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1222830961 + 928177156 = 34969^2 + 30466^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151008117 - 2⁸ = 2151007861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151008617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075504058 + 1075504059.

It is an arithmetic number, because the mean of its divisors is an integer number (1075504059).

Almost surely, 2^2151008117 is an apocalyptic number.

It is an amenable number.

2151008117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151008117 is an equidigital number, since it uses as much as digits as its factorization.

2151008117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 26.

The square root of 2151008117 is about 46378.9620086522. The cubic root of 2151008117 is about 1290.8645761593.

Adding to 2151008117 its reverse (7118001512), we get a palindrome (9269009629).

The spelling of 2151008117 in words is "two billion, one hundred fifty-one million, eight thousand, one hundred seventeen".