42150439 has 2 divisors, whose sum is σ = 42150440. Its totient is φ = 42150438.

The previous prime is 42150413. The next prime is 42150457. The reversal of 42150439 is 93405124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42150439 - 2¹¹ = 42148391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42150739) 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, 21075219 + 21075220.

It is an arithmetic number, because the mean of its divisors is an integer number (21075220).

Almost surely, 2^42150439 is an apocalyptic number.

42150439 is a deficient number, since it is larger than the sum of its proper divisors (1).

42150439 is an equidigital number, since it uses as much as digits as its factorization.

42150439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42150439 is about 6492.3369444292. The cubic root of 42150439 is about 348.0171937381.

The spelling of 42150439 in words is "forty-two million, one hundred fifty thousand, four hundred thirty-nine".