286109149 has 2 divisors, whose sum is σ = 286109150. Its totient is φ = 286109148.

The previous prime is 286109147. The next prime is 286109171. The reversal of 286109149 is 941901682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278656249 + 7452900 = 16693^2 + 2730^2 .

It is a cyclic number.

It is not a de Polignac number, because 286109149 - 2¹ = 286109147 is a prime.

Together with 286109147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286109141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143054574 + 143054575.

It is an arithmetic number, because the mean of its divisors is an integer number (143054575).

Almost surely, 2^286109149 is an apocalyptic number.

It is an amenable number.

286109149 is a deficient number, since it is larger than the sum of its proper divisors (1).

286109149 is an equidigital number, since it uses as much as digits as its factorization.

286109149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 286109149 is about 16914.7612752885. The cubic root of 286109149 is about 658.9370316772.

The spelling of 286109149 in words is "two hundred eighty-six million, one hundred nine thousand, one hundred forty-nine".