97000139 has 2 divisors, whose sum is σ = 97000140. Its totient is φ = 97000138.

The previous prime is 97000133. The next prime is 97000153. The reversal of 97000139 is 93100079.

It is a weak prime.

It is an emirp because it is prime and its reverse (93100079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97000139 - 2¹² = 96996043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97000133) 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, 48500069 + 48500070.

It is an arithmetic number, because the mean of its divisors is an integer number (48500070).

Almost surely, 2^97000139 is an apocalyptic number.

97000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

97000139 is an equidigital number, since it uses as much as digits as its factorization.

97000139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 97000139 is about 9848.8648584494. The cubic root of 97000139 is about 459.4703086926.

The spelling of 97000139 in words is "ninety-seven million, one hundred thirty-nine", and thus it is an aban number.