127842623 has 2 divisors, whose sum is σ = 127842624. Its totient is φ = 127842622.

The previous prime is 127842607. The next prime is 127842629. The reversal of 127842623 is 326248721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127842623 - 2⁴ = 127842607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127842629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63921311 + 63921312.

It is an arithmetic number, because the mean of its divisors is an integer number (63921312).

Almost surely, 2^127842623 is an apocalyptic number.

127842623 is a deficient number, since it is larger than the sum of its proper divisors (1).

127842623 is an equidigital number, since it uses as much as digits as its factorization.

127842623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 127842623 is about 11306.7512133238. The cubic root of 127842623 is about 503.7617908809.

The spelling of 127842623 in words is "one hundred twenty-seven million, eight hundred forty-two thousand, six hundred twenty-three".