97008139 has 2 divisors, whose sum is σ = 97008140. Its totient is φ = 97008138.

The previous prime is 97008133. The next prime is 97008143. The reversal of 97008139 is 93180079.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97008139 is a prime.

It is equal to p_5599036 and since 97008139 and 5599036 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 97008098 and 97008107.

It is not a weakly prime, because it can be changed into another prime (97008133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48504069 + 48504070.

It is an arithmetic number, because the mean of its divisors is an integer number (48504070).

Almost surely, 2^97008139 is an apocalyptic number.

97008139 is a deficient number, since it is larger than the sum of its proper divisors (1).

97008139 is an equidigital number, since it uses as much as digits as its factorization.

97008139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 97008139 is about 9849.2709882509. The cubic root of 97008139 is about 459.4829398134.

The spelling of 97008139 in words is "ninety-seven million, eight thousand, one hundred thirty-nine".