42153169 has 2 divisors, whose sum is σ = 42153170. Its totient is φ = 42153168.

The previous prime is 42153157. The next prime is 42153173. The reversal of 42153169 is 96135124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22924944 + 19228225 = 4788^2 + 4385^2 .

It is a cyclic number.

It is not a de Polignac number, because 42153169 - 2¹¹ = 42151121 is a prime.

It is a super-2 number, since 2×42153169² = 3553779313485122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42153169.

It is not a weakly prime, because it can be changed into another prime (42153569) 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, 21076584 + 21076585.

It is an arithmetic number, because the mean of its divisors is an integer number (21076585).

Almost surely, 2^42153169 is an apocalyptic number.

It is an amenable number.

42153169 is a deficient number, since it is larger than the sum of its proper divisors (1).

42153169 is an equidigital number, since it uses as much as digits as its factorization.

42153169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 42153169 is about 6492.5471888928. The cubic root of 42153169 is about 348.0247070361.

The spelling of 42153169 in words is "forty-two million, one hundred fifty-three thousand, one hundred sixty-nine".