542811097 has 2 divisors, whose sum is σ = 542811098. Its totient is φ = 542811096.

The previous prime is 542811079. The next prime is 542811121. The reversal of 542811097 is 790118245.

Together with previous prime (542811079) 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., 528816016 + 13995081 = 22996^2 + 3741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542811097 is a prime.

It is not a weakly prime, because it can be changed into another prime (542811047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271405548 + 271405549.

It is an arithmetic number, because the mean of its divisors is an integer number (271405549).

Almost surely, 2^542811097 is an apocalyptic number.

It is an amenable number.

542811097 is a deficient number, since it is larger than the sum of its proper divisors (1).

542811097 is an equidigital number, since it uses as much as digits as its factorization.

542811097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 542811097 is about 23298.3067410488. The cubic root of 542811097 is about 815.7358939799.

The spelling of 542811097 in words is "five hundred forty-two million, eight hundred eleven thousand, ninety-seven".