42580129 has 2 divisors, whose sum is σ = 42580130. Its totient is φ = 42580128.

The previous prime is 42580117. The next prime is 42580133. The reversal of 42580129 is 92108524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34199104 + 8381025 = 5848^2 + 2895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42580129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42580129.

It is not a weakly prime, because it can be changed into another prime (42580829) 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, 21290064 + 21290065.

It is an arithmetic number, because the mean of its divisors is an integer number (21290065).

Almost surely, 2^42580129 is an apocalyptic number.

It is an amenable number.

42580129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42580129 is an equidigital number, since it uses as much as digits as its factorization.

42580129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 42580129 is about 6525.3451249723. The cubic root of 42580129 is about 349.1957834494.

The spelling of 42580129 in words is "forty-two million, five hundred eighty thousand, one hundred twenty-nine".