4151998117 has 2 divisors, whose sum is σ = 4151998118. Its totient is φ = 4151998116.

The previous prime is 4151998073. The next prime is 4151998133. The reversal of 4151998117 is 7118991514.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3869959681 + 282038436 = 62209^2 + 16794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4151998117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4151998177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2075999058 + 2075999059.

It is an arithmetic number, because the mean of its divisors is an integer number (2075999059).

Almost surely, 2^4151998117 is an apocalyptic number.

It is an amenable number.

4151998117 is a deficient number, since it is larger than the sum of its proper divisors (1).

4151998117 is an equidigital number, since it uses as much as digits as its factorization.

4151998117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 46.

The square root of 4151998117 is about 64436.0001629524. Note that the first 3 decimals coincide. The cubic root of 4151998117 is about 1607.2584435644.

The spelling of 4151998117 in words is "four billion, one hundred fifty-one million, nine hundred ninety-eight thousand, one hundred seventeen".