1642412533 has 2 divisors, whose sum is σ = 1642412534. Its totient is φ = 1642412532.

The previous prime is 1642412521. The next prime is 1642412567. The reversal of 1642412533 is 3352142461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291899249 + 350513284 = 35943^2 + 18722^2 .

It is an emirp because it is prime and its reverse (3352142461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1642412533 - 2⁹ = 1642412021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1642412495 and 1642412504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1642410533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821206266 + 821206267.

It is an arithmetic number, because the mean of its divisors is an integer number (821206267).

Almost surely, 2^1642412533 is an apocalyptic number.

It is an amenable number.

1642412533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642412533 is an equidigital number, since it uses as much as digits as its factorization.

1642412533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 1642412533 is about 40526.6891443157. The cubic root of 1642412533 is about 1179.8516841740.

Adding to 1642412533 its reverse (3352142461), we get a palindrome (4994554994).

The spelling of 1642412533 in words is "one billion, six hundred forty-two million, four hundred twelve thousand, five hundred thirty-three".