42014509 has 2 divisors, whose sum is σ = 42014510. Its totient is φ = 42014508.

The previous prime is 42014473. The next prime is 42014519. The reversal of 42014509 is 90541024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 605284 = 6435^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 42014509 - 2¹¹ = 42012461 is a prime.

It is a super-2 number, since 2×42014509² = 3530437933022162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42014519) 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, 21007254 + 21007255.

It is an arithmetic number, because the mean of its divisors is an integer number (21007255).

Almost surely, 2^42014509 is an apocalyptic number.

It is an amenable number.

42014509 is a deficient number, since it is larger than the sum of its proper divisors (1).

42014509 is an equidigital number, since it uses as much as digits as its factorization.

42014509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 42014509 is about 6481.8599954026. The cubic root of 42014509 is about 347.6426866031.

The spelling of 42014509 in words is "forty-two million, fourteen thousand, five hundred nine".