842029453 has 2 divisors, whose sum is σ = 842029454. Its totient is φ = 842029452.

The previous prime is 842029451. The next prime is 842029459. The reversal of 842029453 is 354920248.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559890244 + 282139209 = 23662^2 + 16797^2 .

It is a cyclic number.

It is not a de Polignac number, because 842029453 - 2¹ = 842029451 is a prime.

Together with 842029451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (842029451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421014726 + 421014727.

It is an arithmetic number, because the mean of its divisors is an integer number (421014727).

Almost surely, 2^842029453 is an apocalyptic number.

It is an amenable number.

842029453 is a deficient number, since it is larger than the sum of its proper divisors (1).

842029453 is an equidigital number, since it uses as much as digits as its factorization.

842029453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 842029453 is about 29017.7437613609. The cubic root of 842029453 is about 944.2980530436.

It can be divided in two parts, 8420 and 29453, that added together give a palindrome (37873).

The spelling of 842029453 in words is "eight hundred forty-two million, twenty-nine thousand, four hundred fifty-three".