42130469 has 2 divisors, whose sum is σ = 42130470. Its totient is φ = 42130468.

The previous prime is 42130453. The next prime is 42130481. The reversal of 42130469 is 96403124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 15484225 = 5162^2 + 3935^2 .

It is a cyclic number.

It is not a de Polignac number, because 42130469 - 2⁴ = 42130453 is a prime.

It is a super-2 number, since 2×42130469² = 3549952836319922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42130409) 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, 21065234 + 21065235.

It is an arithmetic number, because the mean of its divisors is an integer number (21065235).

Almost surely, 2^42130469 is an apocalyptic number.

It is an amenable number.

42130469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42130469 is an equidigital number, since it uses as much as digits as its factorization.

42130469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 42130469 is about 6490.7987952177. The cubic root of 42130469 is about 347.9622239569.

The spelling of 42130469 in words is "forty-two million, one hundred thirty thousand, four hundred sixty-nine".