42415129 has 2 divisors, whose sum is σ = 42415130. Its totient is φ = 42415128.

The previous prime is 42415123. The next prime is 42415133. The reversal of 42415129 is 92151424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39000025 + 3415104 = 6245^2 + 1848^2 .

It is a cyclic number.

It is not a de Polignac number, because 42415129 - 2⁷ = 42415001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42415097 and 42415106.

It is not a weakly prime, because it can be changed into another prime (42415123) 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, 21207564 + 21207565.

It is an arithmetic number, because the mean of its divisors is an integer number (21207565).

Almost surely, 2^42415129 is an apocalyptic number.

It is an amenable number.

42415129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415129 is an equidigital number, since it uses as much as digits as its factorization.

42415129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 42415129 is about 6512.6898436821. The cubic root of 42415129 is about 348.7441495574.

The spelling of 42415129 in words is "forty-two million, four hundred fifteen thousand, one hundred twenty-nine".