42133369 has 2 divisors, whose sum is σ = 42133370. Its totient is φ = 42133368.

The previous prime is 42133349. The next prime is 42133411. The reversal of 42133369 is 96333124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31505769 + 10627600 = 5613^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 42133369 - 2¹³ = 42125177 is a prime.

It is a super-2 number, since 2×42133369² = 3550441566580322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42133369.

It is not a weakly prime, because it can be changed into another prime (42133339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21066684 + 21066685.

It is an arithmetic number, because the mean of its divisors is an integer number (21066685).

Almost surely, 2^42133369 is an apocalyptic number.

It is an amenable number.

42133369 is a deficient number, since it is larger than the sum of its proper divisors (1).

42133369 is an equidigital number, since it uses as much as digits as its factorization.

42133369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 31.

The square root of 42133369 is about 6491.0221845253. The cubic root of 42133369 is about 347.9702076270.

The spelling of 42133369 in words is "forty-two million, one hundred thirty-three thousand, three hundred sixty-nine".