8542353109 has 2 divisors, whose sum is σ = 8542353110. Its totient is φ = 8542353108.

The previous prime is 8542353091. The next prime is 8542353139. The reversal of 8542353109 is 9013532458.

Together with previous prime (8542353091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5877522225 + 2664830884 = 76665^2 + 51622^2 .

It is a cyclic number.

It is not a de Polignac number, because 8542353109 - 2²¹ = 8540255957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8542353139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4271176554 + 4271176555.

It is an arithmetic number, because the mean of its divisors is an integer number (4271176555).

Almost surely, 2^8542353109 is an apocalyptic number.

It is an amenable number.

8542353109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8542353109 is an equidigital number, since it uses as much as digits as its factorization.

8542353109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 8542353109 is about 92424.8511440511. The cubic root of 8542353109 is about 2044.2115598497.

The spelling of 8542353109 in words is "eight billion, five hundred forty-two million, three hundred fifty-three thousand, one hundred nine".