103143181 has 2 divisors, whose sum is σ = 103143182. Its totient is φ = 103143180.

The previous prime is 103143163. The next prime is 103143223. The reversal of 103143181 is 181341301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99321156 + 3822025 = 9966^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 103143181 - 2⁵ = 103143149 is a prime.

It is a super-2 number, since 2×103143181² = 21277031573597522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103143281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51571590 + 51571591.

It is an arithmetic number, because the mean of its divisors is an integer number (51571591).

Almost surely, 2^103143181 is an apocalyptic number.

It is an amenable number.

103143181 is a deficient number, since it is larger than the sum of its proper divisors (1).

103143181 is an equidigital number, since it uses as much as digits as its factorization.

103143181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 103143181 is about 10155.9431369026. The cubic root of 103143181 is about 468.9719206142.

Adding to 103143181 its reverse (181341301), we get a palindrome (284484482).

The spelling of 103143181 in words is "one hundred three million, one hundred forty-three thousand, one hundred eighty-one".