1380657127 has 2 divisors, whose sum is σ = 1380657128. Its totient is φ = 1380657126.

The previous prime is 1380657071. The next prime is 1380657149. The reversal of 1380657127 is 7217560831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1380657127 - 2⁷ = 1380656999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380657127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380657197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690328563 + 690328564.

It is an arithmetic number, because the mean of its divisors is an integer number (690328564).

Almost surely, 2^1380657127 is an apocalyptic number.

1380657127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380657127 is an equidigital number, since it uses as much as digits as its factorization.

1380657127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 1380657127 is about 37157.1948214609. The cubic root of 1380657127 is about 1113.5129692593.

The spelling of 1380657127 in words is "one billion, three hundred eighty million, six hundred fifty-seven thousand, one hundred twenty-seven".