42415123 has 2 divisors, whose sum is σ = 42415124. Its totient is φ = 42415122.

The previous prime is 42415111. The next prime is 42415129. The reversal of 42415123 is 32151424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42415123 - 2⁹ = 42414611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42415094 and 42415103.

It is not a weakly prime, because it can be changed into another prime (42415129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21207561 + 21207562.

It is an arithmetic number, because the mean of its divisors is an integer number (21207562).

Almost surely, 2^42415123 is an apocalyptic number.

42415123 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415123 is an equidigital number, since it uses as much as digits as its factorization.

42415123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 42415123 is about 6512.6893830429. The cubic root of 42415123 is about 348.7441331130.

Adding to 42415123 its reverse (32151424), we get a palindrome (74566547).

The spelling of 42415123 in words is "forty-two million, four hundred fifteen thousand, one hundred twenty-three".