143188117 has 2 divisors, whose sum is σ = 143188118. Its totient is φ = 143188116.

The previous prime is 143188091. The next prime is 143188141. The reversal of 143188117 is 711881341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101727396 + 41460721 = 10086^2 + 6439^2 .

It is a cyclic number.

It is not a de Polignac number, because 143188117 - 2²⁷ = 8970389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143180117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71594058 + 71594059.

It is an arithmetic number, because the mean of its divisors is an integer number (71594059).

Almost surely, 2^143188117 is an apocalyptic number.

It is an amenable number.

143188117 is a deficient number, since it is larger than the sum of its proper divisors (1).

143188117 is an equidigital number, since it uses as much as digits as its factorization.

143188117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 34.

The square root of 143188117 is about 11966.1237249161. The cubic root of 143188117 is about 523.1613590566.

The spelling of 143188117 in words is "one hundred forty-three million, one hundred eighty-eight thousand, one hundred seventeen".