42154230127 has 2 divisors, whose sum is σ = 42154230128. Its totient is φ = 42154230126.

The previous prime is 42154230109. The next prime is 42154230193. The reversal of 42154230127 is 72103245124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42154230127 - 2²³ = 42145841519 is a prime.

It is a super-2 number, since 2×42154230127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42154230427) 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, 21077115063 + 21077115064.

It is an arithmetic number, because the mean of its divisors is an integer number (21077115064).

Almost surely, 2^42154230127 is an apocalyptic number.

42154230127 is a deficient number, since it is larger than the sum of its proper divisors (1).

42154230127 is an equidigital number, since it uses as much as digits as its factorization.

42154230127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 42154230127 in words is "forty-two billion, one hundred fifty-four million, two hundred thirty thousand, one hundred twenty-seven".