42462187 has 2 divisors, whose sum is σ = 42462188. Its totient is φ = 42462186.

The previous prime is 42462151. The next prime is 42462221. The reversal of 42462187 is 78126424.

It is a happy number.

It is an a-pointer prime, because the next prime (42462221) can be obtained adding 42462187 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42462187 - 2¹⁹ = 41937899 is a prime.

It is not a weakly prime, because it can be changed into another prime (42462127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21231093 + 21231094.

It is an arithmetic number, because the mean of its divisors is an integer number (21231094).

Almost surely, 2^42462187 is an apocalyptic number.

42462187 is a deficient number, since it is larger than the sum of its proper divisors (1).

42462187 is an equidigital number, since it uses as much as digits as its factorization.

42462187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 34.

The square root of 42462187 is about 6516.3016351302. The cubic root of 42462187 is about 348.8730747554.

The spelling of 42462187 in words is "forty-two million, four hundred sixty-two thousand, one hundred eighty-seven".