277142137 has 2 divisors, whose sum is σ = 277142138. Its totient is φ = 277142136.

The previous prime is 277142059. The next prime is 277142147. The reversal of 277142137 is 731241772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276756496 + 385641 = 16636^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 277142137 - 2¹⁵ = 277109369 is a prime.

It is not a weakly prime, because it can be changed into another prime (277142147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138571068 + 138571069.

It is an arithmetic number, because the mean of its divisors is an integer number (138571069).

Almost surely, 2^277142137 is an apocalyptic number.

It is an amenable number.

277142137 is a deficient number, since it is larger than the sum of its proper divisors (1).

277142137 is an equidigital number, since it uses as much as digits as its factorization.

277142137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 34.

The square root of 277142137 is about 16647.5865217755. The cubic root of 277142137 is about 651.9798701866.

The spelling of 277142137 in words is "two hundred seventy-seven million, one hundred forty-two thousand, one hundred thirty-seven".