276322157 has 2 divisors, whose sum is σ = 276322158. Its totient is φ = 276322156.

The previous prime is 276322141. The next prime is 276322159. The reversal of 276322157 is 751223672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276257641 + 64516 = 16621^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 276322157 - 2⁴ = 276322141 is a prime.

Together with 276322159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276322159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138161078 + 138161079.

It is an arithmetic number, because the mean of its divisors is an integer number (138161079).

Almost surely, 2^276322157 is an apocalyptic number.

It is an amenable number.

276322157 is a deficient number, since it is larger than the sum of its proper divisors (1).

276322157 is an equidigital number, since it uses as much as digits as its factorization.

276322157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 276322157 is about 16622.9406844878. The cubic root of 276322157 is about 651.3362310556.

The spelling of 276322157 in words is "two hundred seventy-six million, three hundred twenty-two thousand, one hundred fifty-seven".