289143149 has 2 divisors, whose sum is σ = 289143150. Its totient is φ = 289143148.

The previous prime is 289143133. The next prime is 289143181. The reversal of 289143149 is 941341982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285001924 + 4141225 = 16882^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 289143149 - 2⁴ = 289143133 is a prime.

It is a super-2 number, since 2×289143149² = 167207521227272402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289143109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144571574 + 144571575.

It is an arithmetic number, because the mean of its divisors is an integer number (144571575).

Almost surely, 2^289143149 is an apocalyptic number.

It is an amenable number.

289143149 is a deficient number, since it is larger than the sum of its proper divisors (1).

289143149 is an equidigital number, since it uses as much as digits as its factorization.

289143149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 289143149 is about 17004.2097434723. The cubic root of 289143149 is about 661.2580450778.

The spelling of 289143149 in words is "two hundred eighty-nine million, one hundred forty-three thousand, one hundred forty-nine".