8542069 has 2 divisors, whose sum is σ = 8542070. Its totient is φ = 8542068.

The previous prime is 8542067. The next prime is 8542129. The reversal of 8542069 is 9602458.

It is a happy number.

8542069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6061444 + 2480625 = 2462^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 8542069 - 2¹ = 8542067 is a prime.

It is a super-2 number, since 2×8542069² = 145933885601522, which contains 22 as substring.

Together with 8542067, 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 (8542067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4271034 + 4271035.

It is an arithmetic number, because the mean of its divisors is an integer number (4271035).

Almost surely, 2^8542069 is an apocalyptic number.

It is an amenable number.

8542069 is a deficient number, since it is larger than the sum of its proper divisors (1).

8542069 is an equidigital number, since it uses as much as digits as its factorization.

8542069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 8542069 is about 2922.6818164145. The cubic root of 8542069 is about 204.4188896877.

The spelling of 8542069 in words is "eight million, five hundred forty-two thousand, sixty-nine".