42577123 has 2 divisors, whose sum is σ = 42577124. Its totient is φ = 42577122.

The previous prime is 42577111. The next prime is 42577127. The reversal of 42577123 is 32177524.

42577123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42577123 - 2¹³ = 42568931 is a prime.

It is a super-2 number, since 2×42577123² = 3625622805914258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42577127) 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, 21288561 + 21288562.

It is an arithmetic number, because the mean of its divisors is an integer number (21288562).

Almost surely, 2^42577123 is an apocalyptic number.

42577123 is a deficient number, since it is larger than the sum of its proper divisors (1).

42577123 is an equidigital number, since it uses as much as digits as its factorization.

42577123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 31.

The square root of 42577123 is about 6525.1147882623. The cubic root of 42577123 is about 349.1875659448.

The spelling of 42577123 in words is "forty-two million, five hundred seventy-seven thousand, one hundred twenty-three".