276608149 has 2 divisors, whose sum is σ = 276608150. Its totient is φ = 276608148.

The previous prime is 276608147. The next prime is 276608183. The reversal of 276608149 is 941806672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272580100 + 4028049 = 16510^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 276608149 - 2¹ = 276608147 is a prime.

Together with 276608147, 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 (276608141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138304074 + 138304075.

It is an arithmetic number, because the mean of its divisors is an integer number (138304075).

Almost surely, 2^276608149 is an apocalyptic number.

It is an amenable number.

276608149 is a deficient number, since it is larger than the sum of its proper divisors (1).

276608149 is an equidigital number, since it uses as much as digits as its factorization.

276608149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 276608149 is about 16631.5407885139. The cubic root of 276608149 is about 651.5608634498.

The spelling of 276608149 in words is "two hundred seventy-six million, six hundred eight thousand, one hundred forty-nine".